A man pulls a block of mass equal to himself with a light string. The coefficient of frictionbetween the man and the floor is greater than that between the block and the floor

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if both move, then the acceleration of man is greater than the acceleration of block

if both move, then the acceleration of the block is greater than the acceleration of man

if the block does not move, then the man also does not move

the block can move even when the man is stationary

answer is A, B, C.

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Detailed Solution

Since, $μ_{1} > μ_{2}$

$∴ {(f_{1})}_{mex} > {(f_{2})}_{\max}$

Further if both move,

$a = \frac{T - μ m g}{m}$

$μ$ of block is less. Therefore, its acceleration is more.

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