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Physics-

General

Easy

Question

A block of mass m is placed on another block of mass M. Two blocks are sliding on a smooth inclined plane. Then, the frictional force developed between the blocks is :

$\frac{M m}{M + m} g s i n θ$
$< M g s i n θ$ and $> m g s i n θ$
$\frac{(M + m)}{2} g s i n θ$
Zero

The correct answer is: Zero

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