A bullet of mass 10 g and speed 200 m/s embeds itself in a stationary wooden block of mass 990 g on a smooth surface. The common speed after collision is:
A2 m/s
B0.2 m/s
C20 m/s
D200 m/s
Answer & Solution
Correct answer: A. 2 m/s
Perfectly inelastic: V = (0.01·200)/(0.01+0.99) = 2/1 = 2 m/s.
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