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Questions  

A body is just supported at the face of a cart moving at an acceleration a. The acceleration of the cart so that the body does not slide is

a
Independent of mass of the body
b
Inversely proportional to coefficient of friction
c
1&2
d
None

detailed solution

Correct option is C

N = ma .................(1)fl = µN = µ ma .........................(2)Now fl= mg ⇒ µma = mg⇒  a = g/µ.: a α 1/µ

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