A plate of mass M is placed on a horizontal frictionless surface (see figure) and a body of mass m is placed on this plate. The coefficient of dynamics friction between this body and the plate is μ. If a force 2 μmg is applied to the body of mass m along the horizontal, the acceleration of the plate will be

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Solution

The correct option is A

Reaction on m is mg. Maximum friction force by m on M is μmg. So, the force on M is μmg forword.
Acceleration =

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A plate of mass M is placed on a horizontal frictionless surface (see figure) and a body of mass m is placed on this plate. The coefficient of dynamics friction between this body and the plate is μ. If a force 2 μmg is applied to the body of mass m along the horizontal, the acceleration of the plate will be

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The correct option is A Reaction on m is mg. Maximum friction force by m on M is μmg. So, the force on M is μmg forword. Acceleration =

The correct option is A

Reaction on m is mg. Maximum friction force by m on M is μmg. So, the force on M is μmg forword.
Acceleration =