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A mass m rests on another mass M. The co...

A mass m rests on another mass M. The co- efficient of static friction between the surfaces of m and M is `mu`. M rests on a smooth frictionless horizontal plane. The maximum force applied horizontally on M for which m will move alongwith M without slipping is,

A

`mg + mumg`

B

`(M+m)mug`

C

`(mM)/(M+m)mug`

D

`mumg`

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