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A block of mass m is placed on the top o...

A block of mass m is placed on the top of another block of mass M as shown in the figure. The coefficient of friction between them is `mu`.

The maximum acceleration with which the block M may move so that m also moves along with it is

A

`mu g`

B

`mu(M)/(m) g`

C

`mu(m)/(M) g`

D

`(g)/(mu)`

Text Solution

Verified by Experts

The correct Answer is:
A
(a) m will move by friction,
`f_("max")=mu mg implies(a_(m))_("max")=(mu mg)/(m)=mu g`
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