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1. |
A ball of mass 1 kg moving with a velocity 2 m/s collides directly with a m2 stationary ball of mass 2 kg. If the first ball comes to rest after the impact, what is the velocity of the second ball after impact ? |
A. | 1.0 m/s |
B. | zero |
C. | 2 m/s |
D. | 0.5 m/s |
Answer» B. zero | |