Question #6426051Single Choice

Physics

Question

A 2.5 kg ball moving at 4.2 m/s collides with a 2.5 kg stationary ball. If the first ball is at rest after the collision, what is the velocity of the second ball? 

Options

A
    2.1 m/s
B
    2.5 m/s
C
    4.2 m/s
D
    8.4 m/s

Answer & Analysis

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