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Newton's Second Law: Rotatory Version

A block is pl...

Question

A block is placed on a rough horizontal surface. The minimum force required to slide the block is

A

F cos θ

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B

μ m g

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C

\frac{μ m g}{\sqrt{1 + μ^{2}}}

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D

A l l o f t h e s e

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Solution

The correct option is B $μ m g$
The minimum force required to slide the block is,
$f_{r} = μ N$
From free body diagram,
$N = m g$ normal force.
$f_{r} = μ m g$
The correct option is B.

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Newton's Second Law: Rotatory Version

Standard XII Physics

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