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2. During a tennis match, the players use rackets to hit the tennis ball back and forth across the court. Imagine a situation where player A strikes the ball to player B with a velocity of 15 m/s. Player B strikes the ball and it travels back to player A. a. If the average force exerted by player B's tennis racket is 130 N and the time interval that the ball and the racket are in contact is 15 ms, what is the impulse delivered to the tennis ball? b. What is the velocity of the tennis ball after it leaves player B's racket? For simplicity assume the velocity components are purely horizontal (x-direction). Be careful with the signs because velocity is a vector! c. What was is the change in kinetic energy of the ball caused by the strike of the tennis racket? What does this imply about the collision between the ball and the racket?

          2. During a tennis match, the players use rackets to hit the tennis ball back and forth across the court. Imagine a situation where player A strikes the ball to player B with a velocity of 15 m/s. Player B strikes the ball and it travels back to player A.

a. If the average force exerted by player B's tennis racket is 130 N and the time interval that the ball and the racket are in contact is 15 ms,

what is the impulse delivered to the tennis ball?

b. What is the velocity of the tennis ball after it leaves player B's racket? For simplicity assume the velocity components are purely horizontal (x-direction). Be careful with the signs because velocity is a vector!

c. What was is the change in kinetic energy of the ball caused by the strike of the tennis racket? What does this imply about the collision between the ball and the racket?

2. During a tennis match, the players use rackets to hit the tennis ball back and forth across the court. Imagine a situation where player A strikes the ball to player B with a velocity of 15 m/s. Player B strikes the ball and it travels back to player A.

a. If the average force exerted by player B's tennis racket is 130 N and the time interval that the ball and the racket are in contact is 15 ms,

what is the impulse delivered to the tennis ball?

b. What is the velocity of the tennis ball after it leaves player B's racket? For simplicity assume the velocity components are purely horizontal (x-direction). Be careful with the signs because velocity is a vector!

c. What was is the change in kinetic energy of the ball caused by the strike of the tennis racket? What does this imply about the collision between the ball and the racket?

Added by Scott S.

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