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

i dont know but

explanation:

whoever your teacher is, deserves a raise for using pokemon as an example

a and c

c is 100% but i am confused in a