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A block A of mass 2 kg rests on another ...

A block A of mass 2 kg rests on another block B of mass 8 kg which rests on a horizontal floor. The coefficient of friction between A and B is 0.2 while that between B and floor is 0.5. when a horizontal force of 25 N is applied on the block B. the force of friction between A and B is

A

Zero

B

3.9N

C

5N

D

49N

Text Solution

Verified by Experts

The correct Answer is:
A

8 kg block does not mve
`therefore` f(between A and B)=0
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