a. Explanation Given data: The speed ( v ) is 85 mph . The radius ( r ) from the axis of rotation is 85 cm . Formula used: Formula to calculate the centripetal acceleration for uniform circular motion is given by, a = v 2 r (1) Here, v is the pitching speed, and r is the radius from the axis of rotation. Explanation: Find the ball’s centripetal acceleration just before it is released. Substitute 85 mph for v and 85 cm for r in equation (1), a = ( 85 mph ) 2 85 cm = ( 85 mph ) 2 85 × 10 − 2 m (2) Take the unit conversion for mph, 1 mph = 0 b. To determine The magnitude of the net force acting on the ball just before it is released.

4th Edition

ISBN: 8220106755235

Author: Field

Publisher: PEARSON

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Question

Chapter 6, Problem 19P

To determine

The ball’s centripetal acceleration just before it is released.

To determine

The magnitude of the net force acting on the ball just before it is released.

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Chapter 6, Problem 18P

Chapter 6, Problem 20P

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