d.
3. A ball with a mass of 50 g is dropped from a point 5.41 m above a sidewalk. The ball is in contact
with the sidewalk for 8.1 x 10-3 s. What is the magnitude of the average force exerted on the ball?
0.12 kN
a.
b.
89 N
c.
9.2 N
d. It cannot be determined without knowing how high the ball bounces.
50g 5.41m