incline. If the initial speed of the ball is 10.0 m/s, will the ball reach the top of the hill? If so, determine the angular speed of the ball when it reaches the top of the hill. If not, determine the vertical height that the ball reaches. You may ignore the effects of kinetic friction. 10.00 m 20.0° 10.0 m/s

incline. If the initial speed of the ball is 10.0 m/s, will the ball reach the top of the hill? If so, determine the angular speed of the ball when it reaches the top of the hill. If not, determine the vertical height that the ball reaches. You may ignore the effects of kinetic friction. 10.00 m 20.0° 10.0 m/s

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter10: Rotational Motion And Angular Momentum

Section: Chapter Questions

Problem 4PE: Unreasonable Results You are told that a basketball player spins the ball with an angular...

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One method of pitching a softball is called the wind-mill delivery method, in which the pitchers arm rotates through approximately 360 in a vertical plane before the 198-gram ball is released at the lowest point of the circular motion. An experienced pitcher can throw a ball with a speed of 98.0 mi/h. Assume the angular acceleration is uniform throughout the pitching motion and take the distance between the softball and the shoulder joint to be 74.2 cm. (a) Determine the angular speed of the arm in rev/s at the instant of release, (b) Find the value of the angular acceleration in rev/s2 and the radial and tangential acceleration of the ball just before it is released, (c) Determine the force exerted on the ball by the pitchers hand (both radial and tangential components) just before it is released.
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