57.0- g tennis ball is traveling straight at a player at 21.0 m/ s. the player volleys the ball straight back at 25.0 m/ s. if the ball remains in contact with the racket for 0.060 0 s, what average force acts on the ball?

43.7 N

Explanation:

Given

Mass of tennis ball is =57 gm

velocity of ball=21 m/s

The player volleys the ball straight back at 25 m/s(i.e. in opposite of initial direction)

time of contact=0.06 s

We know change in momentum

initial momentum

final momentum

change in momentum

Now 2.622

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