A plate of mass M is placed on a horizontal frictionless surface (see fig), and a body of mass m is placed on this plate. The coefficient of dynamic friction between this body and the plate is µ. If a force 2µ mg is applied to the body of mass m along the horizontal, the acceleration of the plate will be-
A
g
B
g
C
g
D
g
Text Solution
Verified by ExpertsThe correct answer is:
A
Reaction on m is mg. Maximum frictional force on m is µmg. So, the force on M is µmg forward. acceleration = 
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