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College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

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BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

A tennis player receives a shot with the ball (0.060 0 kg) traveling horizontally at 50.0 m/s and returns the shot with the ball traveling horizontally at 40.0 m/s in the opposite direction.

(a) What is the impulse delivered to the ball by the racket?

(b) What work does the racket do on the hall?

(a)

To determine

Impulse delivered to the ball by the racket?

Explanation

Given Info: The final velocity of the ball is in positive direction the mass of the ball is 0.0600 kg , initial velocity of the ball is 50.0 m/s , and final velocity of the ball is 40.0 m/s .

The expression for impulse is,

I=Δp

  • Δp is the change in momentum
  • I is the impulse delivered to the ball

Rewrite the expression in terms of mass and velocity

I=m(vfvi)                                                                          (I)

  • vf is the final velocity of the ball
  • vi is the Initial velocity of the ball
  • m is the mass of the ball

Substitute 0

(b)

To determine

Work done by the racket on the ball.

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