University Physics Volume 1
18th Edition
ISBN: 9781938168277
Author: William Moebs, Samuel J. Ling, Jeff Sanny
Publisher: OpenStax - Rice University
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 5, Problem 87AP
As shown below, two identical springs, each with the spring constant 20 N/m, support a 15.0-N weight. (a) What is the tension in spring A? (b) What is the amount of stretch of spring A from the rest position?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A 1.60 kg box rests on a plank that is inclined at an angle of 55.0° above the horizontal. The upper end of the box isattached to a spring with a force constant of 21.0 N/m, as shown in the figure. If the coefficient of static friction betweenthe box and the plank is 0.15, what is the maximum amount the spring can be stretched and the box remain at rest?
A 1.70 kg box rests on a plank that is inclined ut an angle of 63.0° above the horizontal. The upper end of the box isattached to a spring with a force constant of 16.0 N/m, as shown in the figure. If the coefficient of static friction betweenthe box and the plank is 0.26, what is the maximum amount the spring can be stretched and the box remain at rest?
Consider the figure above, where a rigid beam of negligible mass and 10 m long is supported by a cable attached to a spring. When NO block is hung from the beam, the length L (cable-spring) is equal to 5 m. Assume that immediately after block (weight of 260 N) is hung at the end of the beam the spring does not stretch, calculate the tension under this assumption. Using this tension find how much the spring stretches. Express the amount the spring is stretched in cm. k =8275 N/m.
Chapter 5 Solutions
University Physics Volume 1
Ch. 5 - Check Your Understanding Find the magnitude and...Ch. 5 - Check Your Understanding A skydiver opens his...Ch. 5 - Check Your Understanding At the time of its...Ch. 5 - Check Your Understanding A 550-kg sports car...Ch. 5 - Check Your Understanding A car gas forces acting...Ch. 5 - Check Your Understanding For Example 5.8, find the...Ch. 5 - Check Your Understanding Two blocks are at rest...Ch. 5 - Check Your Understanding A force of 1150 N acts...Ch. 5 - Check Your Understanding One end of a 3.0-m rope...Ch. 5 - Check Your Understanding (a) Draw the free-body...
Ch. 5 - What properties do forces have that allow us to...Ch. 5 - Taking a frame attached to Earth as inertial,...Ch. 5 - A woman was transporting an open box of cupcakes...Ch. 5 - Why can we neglect forces such as those holding a...Ch. 5 - A rock is thrown straight up. At the top of the...Ch. 5 - What is the relationship between weight and mass?...Ch. 5 - How much does a 70-kg astronaut weight in space,...Ch. 5 - Which of the following statements is accurate? (a)...Ch. 5 - When you stand on Earth, your feet push against it...Ch. 5 - How would you give the value of g in vector form?Ch. 5 - Newton’s Third Law Identity the action and...Ch. 5 - Suppose that you are holding a cup of coffee in...Ch. 5 - (a) Why does an ordinary rifle recoil (kick...Ch. 5 - Common Forces A table is placed on a rug. Then a...Ch. 5 - A particle is moving to the right. (a) Can the...Ch. 5 - Drawing Free-Body Diagrams In completing the...Ch. 5 - If a book is located on a table, how many forces...Ch. 5 - If the book in the previous question is in free...Ch. 5 - Two ropes are attached to a tree, and forces of...Ch. 5 - A telephone pole has three cables pulling as shown...Ch. 5 - Two teenagers are pulling on ropes attached to a...Ch. 5 - Two forces of and act on an object. Find the third...Ch. 5 - While sliding a couch across a floor, Andrea and...Ch. 5 - Newton’s Second Law Andrea, a 63.0-kg sprinter,...Ch. 5 - If the sprinter from the previous problem...Ch. 5 - A cleaner pushes a 4.50-kg laundry cart in such a...Ch. 5 - Astronauts in orbit are apparently weightless....Ch. 5 - In Figure 5.12, the net external force on the...Ch. 5 - The rocket sled shown below decelerates at a rate...Ch. 5 - If the rocket sled shown in the previous problem...Ch. 5 - What is the deceleration of the rocket sled if it...Ch. 5 - Suppose two children push horizontally, but in...Ch. 5 - A powerful motorcycle can produce an acceleration...Ch. 5 - A car with a mass of 1000.0 kg accelerates from 0...Ch. 5 - The driver in the previous problem applies the...Ch. 5 - An 80.0-kg passenger in an SUV traveling at...Ch. 5 - A particle of mass 2.0 kg is acted on by a single...Ch. 5 - Suppose that the particle of the previous problem...Ch. 5 - Find the acceleration of the body of mass 5.0 kg...Ch. 5 - In the following figure, the horizontal surface on...Ch. 5 - Mass and Weight The weight of an astronaut plus...Ch. 5 - Suppose the mass of a fully loaded module in which...Ch. 5 - A rocket sled accelerates at a rate of 49.0m/s2 ....Ch. 5 - Repeat the previous problem for a situation in...Ch. 5 - A body of mass 2.00 kg is pushed straight upward...Ch. 5 - A car weighing 12,500 N stalls from rest and...Ch. 5 - A body with a mass of 10.0 kg is assumed to be in...Ch. 5 - A fireman has mass m ; he hears the fire alarm and...Ch. 5 - A baseball catcher is performing a stunt for a...Ch. 5 - When the Moon is directly overhead at sunset, the...Ch. 5 - (a) What net external force is exerted on a...Ch. 5 - A brave but inadequate rugby player is being...Ch. 5 - A history book is lying on top of a physics book...Ch. 5 - A truck collides with a car, and during the...Ch. 5 - Common Forces A leg is suspended in a traction...Ch. 5 - Suppose the shinbone in the preceding image was a...Ch. 5 - Two teams of nine members each engage in...Ch. 5 - What force does a trampoline have to apply to...Ch. 5 - (a) Calculate the tension in a vertical strand of...Ch. 5 - Suppose Kevin, a 60.0-kg gymnast, climbs a rope....Ch. 5 - Show that, as explained in the text, a force F...Ch. 5 - Consider Figure 5.28. The driver attempts to get...Ch. 5 - A bird has a mass of 26g and perches in the middle...Ch. 5 - -m rope is tied to a tree; the other end is tied...Ch. 5 - Consider the baby being weighed in the following...Ch. 5 - What force must be applied to a 100.0-kg crate on...Ch. 5 - A 2.0-kg block is on a perfectly smooth ramp that...Ch. 5 - Drawing Free-Body Diagrams A ball of mass m hangs...Ch. 5 - A car moves along a horizontal road. Draw a free-...Ch. 5 - A runner pushes against the track, as shown. (a)...Ch. 5 - The traffic light hangs from the cables as shown....Ch. 5 - Two small forces, F1=2.40i6.10tj N and...Ch. 5 - Two forces of 25 and 45 N act on an object. Their...Ch. 5 - A force of 1600 N acts parallel to a ramp to push...Ch. 5 - Draw a free-body diagram of a diver who has...Ch. 5 - For a swimmer who has just jumped off a diving...Ch. 5 - (a) Find an equation to determine the magnitude of...Ch. 5 - A sailboat has a mass of 1.50103kg and is acted on...Ch. 5 - Find the acceleration of the body of mass 10.0 kg...Ch. 5 - A body of mass 2.0 kg is moving along the x -axis...Ch. 5 - Force FBhas twice the magnitude of force FA. Find...Ch. 5 - Shown below is a body of mass 1.0 kg under the...Ch. 5 - A force acts on a car of mass m so that the speed...Ch. 5 - A 7.0-N force parallel to an incline is applied to...Ch. 5 - Two boxes, A and B, are at rest Box A is on level...Ch. 5 - A mass of 250.0 g is suspended from a spring...Ch. 5 - As shown below, two identical springs, each with...Ch. 5 - Shown below is a 30.0-kg block resting on a...Ch. 5 - In building a house, carpenters use nails from a...Ch. 5 - A force is applied to a block to move it up a 30...Ch. 5 - Two forces are applied to a 5.0-kg object, and it...Ch. 5 - The block on the tight shown below has more mass...Ch. 5 - If two tugboats pull on a disabled vessel, as...Ch. 5 - A 10.0-kg object is initially moving east at 15.0...Ch. 5 - On June 25, 1983, shot-putter Udo Beyer of East...Ch. 5 - A body of mass m moves in a horizontal direction...Ch. 5 - A body of mass m has initial velocity v0 in the...Ch. 5 - The velocities of a 3.0-kg object at and are and...Ch. 5 - A 120-kg astronaut is riding in a rocket sled that...Ch. 5 - Two forces are acting on a 5.0-kg object that...Ch. 5 - Suppose that you are viewing a soccer game from a...Ch. 5 - A 10.0-kg mass hangs from a spring that has the...Ch. 5 - A 0.0502-kg pair of fuzzy dice is attached to the...Ch. 5 - At a circus, a donkey pulls on a sled carrying a...Ch. 5 - Hanging from the ceiling over a baby bed, well out...Ch. 5 - A bullet shot from a rifle has mass of 10.0 g and...Ch. 5 - An object is acted on by three simultaneous...Ch. 5 - In a particle accelerator, a proton has mass...Ch. 5 - A drone is being directed across a frictionless...
Additional Science Textbook Solutions
Find more solutions based on key concepts
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective (8th Edition)
Consider the circuit shown below. What is the energy Stored in each capacitor after the switch has been closed ...
University Physics Volume 2
Pluto and Eris. How does the nebular theory explain the origin of objects like Pluto and Eris? How was their fo...
Life in the Universe (4th Edition)
Why are polarizing sunglasses better than glasses that simply reduce the total amount of light?
Essential University Physics: Volume 2 (3rd Edition)
An ideal diatomic gas, in a cylinder with a movable piston, undergoes the rectangular cyclic process shown in F...
An Introduction to Thermal Physics
The height of a certain hill (in feet) is given by , where y is the distance (in miles) north, x the distance e...
Introduction to Electrodynamics
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Jamal and Dayo are lifting a large chest, weighing 207 lb, by using the two rope handles attached to either side. As they lift and hold it up so that it is motionless, each handle makes a different angle with respect to the vertical side of the chest (Fig. P5.76). If the angle between Jamals handle and the vertical side is 25.0 and the angle between Dayos handle and the vertical side of the chest is 30.0, what are the tensions in each handle? FIGURE P5.76arrow_forwardAs shown below, two identical springs, each with the spring constant 20 N/m, support a 15.0-N weight. (a) What is the tension in spring A? (b) What is the amount of stretch of spring A from the rest position?arrow_forwardA spring with spring constant k=340N/m is used to weigh a 6.7-kg fish. How far does the spring stretch?arrow_forward
- (a) A 2.25 kg salami is supported by a cord that runs to a spring scale, which is supported by another cord from the ceiling (see Figure (a)). What is the reading on the scale, which is marked in weight units? (b) In Figure (b) the salami is supported by a cord that runs around a pulley and to a scale. The opposite end of the scale is attached by a cord to a wall. What is the reading on the scale? (c) In Figure (c) the wall has been replaced with a second 2.25 kg salami on the left, and the assembly is stationary. What is the reading on the scale now? Spring scale Spring scale (b) Spring scale (a) (c) (a) Number Units (b) Number i Units (c) Number Unitsarrow_forward(a) A 2.25 kg salami is supported by a cord that runs to a spring scale, which is supported by another cord from the ceiling (see Figure (a)). What is the reading on the scale, which is marked in weight units? (b) In Figure (b) the salami is supported by a cord that runs around a pulley and to a scale. The opposite end of the scale is attached by a cord to a wall. What is the reading on the scale? (c) In Figure (c) the wall has been replaced with a second 2.25 kg salami on the left, and the assembly is stationary. What is the reading on the scale now? Spring scale Spring scale (b) Spring scale (a) (c) (a) Number 22.05 Units N (b) Number 22.05 Units (c) Number 44.10 Unitsarrow_forwardLogs weighing 1.3 kg and 2.2 kg lie on a flat surface and are connected by a rope that breaks at a force of 20 N. The coefficient of friction between the lighter log and the base is 0.50, and between the heavier log and the base 0.30. With what maximum force can we pull the lighter log so that the string does not break?arrow_forward
- Two identical, side-by-side springs with spring constant 240 N/m support a 2.00 kg hanging box. Each spring supports the same weight. By how much is each spring stretched?arrow_forward(a) A 4.53 kg salami is supported by a cord that runs to a spring scale, which is supported by another cord from the ceiling (see Figure (a)). What is the reading on the scale, which is marked in weight units? (b) In Figure (b) the salami is supported by a cord that runs around a pulley and to a scale. The opposite end of the scale is attached by a cord to a wall. What is the reading on the scale? (c) In Figure (c) the wall has been replaced with a second 4.53 kg salami on the left, and the assembly is stationary. What is the reading on the scale now? Spring scale Spring scale (6) Spring scale (a) (c) (a) Number i Units (b) Number i Units (c) Number i Unitsarrow_forwardYou have a light spring which obeys Hooke's law. This spring stretches 2.78 cm vertically when a 2.70 kg object is suspended from it. Determine the following. (a) the force constant of the spring (in N/m) What force causes the spring to stretch? What force does the spring exert on the hanging object? Can you write a relationship between these two forces? N/m (b) the distance (in cm) the spring stretches if you replace the 2.70 kg object with a 1.35 kg object cm (c) the amount of work (in J) an external agent must do to stretch the spring 8.40 cm from its unstretched positionarrow_forward
- Systems are in equilibrium. If the spring scales are calibrated in newtons, what do they read? Ignore the masses of the pulleys and strings and assume the pulleys and the incline are frictionless. (Let m = 2.66 kg and ? = 29.0°.) scale in (a) N scale in (b) N scale in (c) N scale in (d) Narrow_forwardTwo blocks A and B have a weight of 9 lb and 5 lb, respectively. They are resting on the incline for which the coefficients of static friction are μ = 0.16 and μ = 0.27. Determine the angle which will cause motion of one of the blocks. What is the friction force under each of the blocks when this occurs? The spring has a stiffness of k = 2 lb/ft and is originally unstretched. (Figure 1) Figure k=2 lb/ft www 1 of 1 >arrow_forwardA person who weighs 744 N steps onto a spring scale in the bathroom, and the spring compresses by 0.510 cm. What is the weight of another person who compresses the spring by 0.380 cm?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Newton's First Law of Motion: Mass and Inertia; Author: Professor Dave explains;https://www.youtube.com/watch?v=1XSyyjcEHo0;License: Standard YouTube License, CC-BY