Part 2) A ball undergoes uniform circular motion in a horizontal plane in an anti-clockwise direction. It traces out a path with a radius of r = 1.22 m over a period T = 1.17 s. Calculate the speed of the ball. v = 6.55 m/s Your last answer was interpreted as follows: 6.55 Part 3) Consider the ball undergoing uniform circular motion as described in Part 2 at the points shown below. î is a unit vector in the x direction and ĵ is a unit vector in the y direction. Write the acceleration of the object at points A and B in unit vector notation. î+ î+ î m/s? ĵ m/s² a =

Part 2) A ball undergoes uniform circular motion in a horizontal plane in an anti-clockwise direction. It traces out a path with a radius of r = 1.22 m over a period T = 1.17 s. Calculate the speed of the ball. v = 6.55 m/s Your last answer was interpreted as follows: 6.55 Part 3) Consider the ball undergoing uniform circular motion as described in Part 2 at the points shown below. î is a unit vector in the x direction and ĵ is a unit vector in the y direction. Write the acceleration of the object at points A and B in unit vector notation. î+ î+ î m/s? ĵ m/s² a =

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And The Law Of Gravity

Section: Chapter Questions

Problem 1WUE: Math Review A circular track has a radius of 125 m. (a) Calculate the distance around the track. (b)...

See similar textbooks

Similar questions

Math Review A circular track has a radius of 125 m. (a) Calculate the distance around the track. (b) If a runner jogs 275 m along the track, through what angle has he run?
A car initially traveling eastward turns north by traveling in a circular path at uniform speed as shown in the figure below. The length of the arc ABC is 212 m, and the car completes the turn in 34.0s. 35.0 (a) Determine the car's speed. 7.625 Your response differs from the correct answer by more than 10%. Double check your calculations. m/s (b) What is the magnitude and direction of the acceleration when the car is at point B? 0.37 magnitude Your response differs from the correct answer 125 more than 10%. Double check your calculations. m/s direction • counterclockwise from the +x-axis
at t=0 an automobile travelling north begins to take a turn. it follows one quarter of a arc of a cirlce of radius 10.1m until t=2.1 where it is travelllign east. the car does not alter its speed. 1. what is the speed of the car? 2. what is the magnitude of the chnage in the cars velocity during the turn? 3. what is the magnitude of the average acceleration of the car during the turn? 4. what is the direction of the average acceleration during the turn of the car?
A cyclist goes round a circular track, of radius 10 m, at a constant speed of 8.0 m s-1.What is the acceleration of the cyclist and what is its direction?
A car P travels along a straight road with a constant speed v = 56 mi/hr. At the instant when the angle e = 65°, determine the rate at which the angle é varies with time (rad/sec) if d=95ft. Round off only on final answer expressed in three decimal places. d.
A car's velocity is at 100 km/h going North [N] for 1.0 hour. The car continues to move for another 2.0 hours at 82 km/h South [S). Determine the car's: A trekker walks 5.0 km North [N] and then 8.0 km South [S] for 3.0 hours. Let's Appraise 1. Determine the trekker's: Average velocity а. b. Average speed 2. Total displacement a. b. Moving average velocity C. Total distance covered d. Moving average speed Plot a graph using the values given in the table of distance and time 3. Determine the moving average velocity during the first 5.0 seconds. а. t(s) d(m) 0.5 0.5 Determine the moving average velocity during the time interval of 2.0 to 13.0 seconds. b. 1.0 1.2 1.5 2.0 2.0 3.0 Determine the time if the 2.5 4.1 С. velocity is zero, 3.0 5.3 3.5 6.9 d. Determine the velocity for each given time: 4.0 8.7 4.5 10.7 i. 3.0 s 5.0 13.0 5.5 15.0 ii. 6.5 s 6.0 16.1 iii. 11.0 s 6.5 16.9 7.0 17.3 7.5 17.8 8.0 17.9 8.5 18.0 9.0 18.0 17.8 17.6 9.5 10.0 10.5 17.2 11.0 16.8 11.5 16.3 15.7 14.9 12.0 12.5…
1. What is the radius r of the turn if θ=20° ( assuming the car continues in uniform circular motion around the turn)? Express answer in meters.
▾ Part A The two disks A and B have a mass of 3 kg and 6 kg, respectively. They collide with the initial velocities shown. The coefficient of restitution is e = 0.75. Suppose that (VA)1 = 6 m/s, (VB)1 8 m/s. (Figure 1) = Determine the magnitude of the velocity of A just after impact. Express your answer to three significant figures and include the appropriate units. ▸ View Available Hint(s) Figure (VB)1 1 of 1 > ΜΑ (VA)2= Value Units Submit ▾ Part B Determine the angle between the x axis and the velocity of A just after impact, measured clockwise from t Express your answer in degrees to three significant figures. View Available Hint(s) 0₁ = Submit B A (VA) 60° Line of impact Part C ΜΕ ΑΣΦ vec ?
A cannonball is shot with an initial speed of 66 m/s and 37.0º angle with respect to the ground. How long does it take for the ball to reach its the maximum height, in seconds? Use g = 10.0 m/s2. Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.
In 1.0s, a particle goes from point A to point B, moving in a semicircle (see figure). The magnitude of the average velocity is B. u O'I
3. Consider a particle moving in uniform circular motion (UCM) in the counter clockwise direction along a circular path of radius r as shown below. At the instant shown below the position vector r makes an angle 0 with the horizontal. 9. a) Obtain the position vector in unit-vector notation. b) Obtain the velocity vector in unit vector notation. c) Obtain the acceleration vector in unit vector notation. d) Prove that the magnitude of the radially inward. acceleration vector is direction is and it's e) Prove that the position vector is perpendicular to the velocity vector.
A ball is thrown at an initial height of 65 feet at an initial velocity of 75 feet/second at an angle of 65 degrees. Given the parametric equations yY = - - 16t + Vo · Sin(0)t + ho and x = Vo Cos(0)t. When doing calculations, carry 5 digits of accuracy, so your round off does not build up. a. What is the ball's height in 3 seconds? feet. seconds. b. When will the object hit the ground? feet. c. How far horizontally will the ball be when it hits the ground? seconds. d. When will the ball be at its maximum height? e. What is the ball's maximum height? feet. feet f. How far horizontally will the ball be when it reaches its maximum height?