posted by Angel .
A 2.7 kg ball strikes a wall with a velocity of
7.6 m/s to the left. The ball bounces oﬀ with
a velocity of 5.2 m/s to the right.
If the ball is in contact with the wall for
0.23 s, what is the constant force exerted on
the ball by the wall?
Answer in units of N
change in momentum / time