In figure, two blocks M and m are tied together with an inextensible and light string. mass M is pla

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4-2.Friction

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In figure, two blocks $M$ and $m$ are tied together with an inextensible and light string. The mass $M$ is placed on a rough horizontal surface with coefficient of friction $\mu$ and the mass $m$ is hanging vertically against a smooth vertical wall. The pulley is frictionless. When the downward acceleration of the elevator becomes equal to $g$, then

Aboth the blocks remain stationary with respect to the elevator

Bboth the blocks accelerate vertically downwards with $g$ with respect to ground

Cthe tension in the string becomes equal to zero

DAll of the above

Solution

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Standard 11

Physics

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