Sketch a Free Body Diagram (FBD) of the following: 1. A car driving on a highway at a constant speed A car using the breaks to slow down 2. 3. A textbook sits on a level desk 4. A skydiver falling. An 3.5 kg object experiences the following forces: • 31 N [Right] • 93 N [Left] Determine the acceleration of the mass Write the units of acceleration a m/s/s

Sketch a Free Body Diagram (FBD) of the following: 1. A car driving on a highway at a constant speed A car using the breaks to slow down 2. 3. A textbook sits on a level desk 4. A skydiver falling. An 3.5 kg object experiences the following forces: • 31 N [Right] • 93 N [Left] Determine the acceleration of the mass Write the units of acceleration a m/s/s

Name: Sketcha Free Body Diagram (FBD) of the following:1.A car driving on a
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Description: Sketcha Free Body Diagram (FBD) of the following:1.A car driving on a highway at a constant speedA car using the breaks to slow down2.3. A textbook sits on a level desk4. A skydiver falling.An 3.5 kg object experiences the following forces:31 N [Rig

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 104CP: At a circus, a donkey pulls on a sled carrying a small clown with a force given by . A horse pulls...

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. As a baseball is being caught, its speed goes from 30 to 0 m/s in about 0.005 s. Its mass is 0.145 kg. (a) What is the baseball’s acceleration in m/s and in Ws? (b) What is the size of the force acting on it?
A powerful motorcycle can produce an acceleration of 3.50m/s2 while traveling at 90.0 km/h. At that speed, the forces resisting motion, including friction and air resistance, total 400.0 N. (Air resistance is analogous to air fiction. It always opposes the motion of an object.) What is the magnitude of the force that motorcycle exerts backward on the ground to produce its acceleration if the mass of the motorcycle with rider is 245 kg?
The wheels of a midsize car exert a force of 2100 N backward on the road to accelerate the car in the forward direction. If the force of friction including air resistance is 250 N and the acceleration of the car is 1.80 m/s2, what is the mass of the car plus its occupants? Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion. For this situation, draw a free-body diagram and write the net force equation.
At a circus, a donkey pulls on a sled carrying a small clown with a force given by . A horse pulls on the same sled, aiding the hapless donkey, with a force of The mass of the sled is 575 kg. Using and from for the answer to each problem, find (a) the net force on the sled when the two animals act together, (b) the acceleration of the sled, and (c) the velocity after 6.50 s.
(a) Give an example of different net external forces acting on the same system to produce different accelerations. (b) Give an example of the same net external force acting on systems of different masses, producing different accelerations. (c) What law accurately describes both effects? State it in words and as an equation.
Suppose au airline allows a maximum of 30 kg for each suitcase a passenger brings along. (a) What is the weight in newtons of a 30-kg t1ikasr? (b) What is the weight in pounds?
Cabinet of mass (40 kg) rests on a rough horizontal floor. If you pulled the cabinet with a horizontal force of (N 200), the coefficient of kinetic friction between the cabinet and the floor (0.4), and the acceleration of free fall (10 m / s2), calculate the amount of: a. The kinetic friction force acting on the cabinet. B . Treasury acceleration.
On a separate occasion, Michael threatened to jump from the roof of hisoffice building as a demonstration of seasonal depression. If it takes 1.2seconds for his body to plummet to the ground,a. How fast will he be going when he reaches the ground?b. How far will he have fallen in meters?c. In feet?d. If Michael weighs 185 lbs, what would his force of collision with theground be, in Newtons, if his sudden deceleration upon impact takes0.1 seconds? ( 1 lb = 4.45 N, which means on Earth, a weight of 2.2lbs corresponds to a mass of 1 kg)
A cabinet has a mass of 45 kg. A man pushes the cabinet with 20N of force to the South. A second person pushes the cabinet with 15 N of force in the same direction. a. Draw a free body diagram. b. What is the net force acting on the cabinet? c. What is the acceleration of the cabinet? d. A third person pushes the cabinet and the cabinet stops. What force did the third person apply?
1. Write an equation relating distance, time, and acceleration. Assume the initial velocity to be zero. 2. Arrange the above equation to solve for acceleration. 3. Draw a free body diagram showing the forces that act on the block on the incline plane. Assume no friction. 4. Would the acceleration down the incline be: increasing, decreasing or constant? Explain your answer.
1. A person is pushing a 10.0 kg desk with a force of 17.0 N. If the friction opposing the motion was 2.0 N, what is the acceleration? 2. Given that the acceleration (from the 1st problem) was constant, if the person was moving the desk at 5.0 m/s at first and stopped after 20.0 seconds, what was his final velocity?
1. Write Newton’s 2nd law along the ? and ? directions for both blocks considering their state of motion (accelerations). 2. What are the magnitude and direction of the frictional force on the upper box? 3. What is the magnitude of the applied force?