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In the figure shown, all the surfaces ar...

In the figure shown, all the surfaces are rough. Both the blocks have the same mass. The friction coefficient between all the surface is the same. Choose the correct statements.

A

If friction between A and B is kinetic, friction between A and ground is also kinetic

B

If friction between A and B is Static, friction between A and ground is also static

C

If friction between A and B is kinetic, friction between A and ground is static

D

If friction between A and B is staic, friction between A and ground is kinetic

Text Solution

Verified by Experts

The correct Answer is:
BC
Case -1: `F gt mu mg `: both moving together

`F-2 mumg =ma`
`f- 2mu mg +F//2- mumg `
`rArr f//2 +mu mg le mu mg `
`rArr f le 0:.` not possible
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