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PhysicsNLMFrictionMedium2 minPYQ_2003

PhysicsMediumsingle choice

A horizontal force of $10 N$ is necessary to just hold a block stationary against a wall. The co-efficient of friction between the block and the wall is $0.2$ . The weight of the block is

Question diagram: A horizontal force of 10 N is necessary to just hold a block

Options:

Answer:

D

Solution:

$f = mg \Rightarrow μ N = W \Rightarrow μ .10 = W$ $\Rightarrow 0.2 \times 10 = W$ $∴ W = 2 N$

Stream:JEESubject:PhysicsTopic:NLMSubtopic:Friction

⏱ 2mℹ️ Source: PYQ_2003

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