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Two blocks A and B are placed one over the other on a smooth horizontal surface. The maximum horizontal force that can be applied on the lower block A, so that A and B move without separation is 49N. The coefficient of friction between A and B is (take g = `9.8ms^(-2)` )

A

0.2

B

0.3

C

0.5

D

0.8

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The correct Answer is:
C
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