A 0.500-kg ball traveling horizontally on a frictionless surface approaches a very massive stone at 20.0 m/s perpendicular to wall and rebounds with 70.0% of its initial kinetic energy
What is the magnitude of the change in momentum of the stone?
A) 18.4 kg ? m/s
B) 14.0 kg ? m/s
C) 3.00 kg ? m/s
D) 1.63 kg ? m/s
E) 0.000 kg ? m/s
Answer: A
Physics & Space Science
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