PRACTICE PROBLEMS III

ANSWER KEY

1. Fm=msR Fm =0.15 x 22.73 Fm =3.41 N

2. M =mv M = 90.9 kg x 7.62 m/s M =692.66 N

M =mv M=mv 692.66 N = v v =8,96 m/s

V v 77.27 kg

3. 0.92 (superball), 0.75 (tennis ball), 0.36 (softball)

4. e=Öhb e=Ö.77 e=Ö.308 e=.55

hd 2.5