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A body of mass `M` is applying horizontal force to slide a box of mass `M_(1)` on a rough horizontal surface The coefficient of friction between the shoe of the boy and the floor is `mu` and that between the box and the floor is `'mu_(1)'` In which of the following cases is it certainly not possible to slide the box ? .

A

`mu lt mu_(1),M lt M_(1)`

B

`mu gt mu_(1),Mgt M_(1)`

C

`mu lt mu_(1), Mgt M_(1)`

D

`mu_(1) gtmu_(1), M ltM_(1)`

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The correct Answer is:
A
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