An 8-kg ball rolling at 2m/s bumps into a pillow and stops in 0.5s (a) Show that the force exerted by the pillow is 32N. (b) How much force does the ball exert on the pillow?

Answer 1

(a) Initial momentum = impulse
8 kg * 2 m/s = Force * 0.5 s
Force = __ Newtons

(b) Use Newton's third law
action = reaction
(This refers to forces objects exert on each other)

Answer 2

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