A rubber ball and a lump of clay have equal mass. They are thrown with equal spe

Question

A rubber ball and a lump of clay have equal mass. They are thrown with equal speed against a wall. The rubber ball bounces back with nearly the same speed with which it hit. The clay sticks to the wall. Which one of these objects experiences the greater momentum change? A. the clay B. the rubber ball C. Both experience the same non-zero momentum change. D. Both experience zero momentum change. A rubber ball and a lump of clay have equal mass. They are thrown with equal speed against a wall. The rubber ball bounces back with nearly the same speed with which it hit. The clay sticks to the wall. Which one of these objects experiences the greater momentum change? A. the clay B. the rubber ball C. Both experience the same non-zero momentum change. D. Both experience zero momentum change.

Explanation / Answer

let v be the initial speed of rubber ball and lump of clay

initial momentum for both is m * v

final momentum for rubber ball is m * (-v)

so change in momentum is m * (-v) - m*v = 2m * v

for clay the change in momentum is 0 - m*v = m * v

so the rubber ball has greater momentum change

Answer is

B. The Rubber ball

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