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Question

The velocity of a bullet is reduced from 200 m/s to 100 m/s while travelling through a wooden block of thickness 10 cm. The retardation, assuming it to be uniform, will be

A
10×104 m/s2
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B
12×104 m/s2
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C
13.5×104 m/s2
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D
15×104 m/s2
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