Physics
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

Physics 
Damon
change in momentum / time
= 2.7(7.6+5.2)/.23
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