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Balanced and Unbalanced Forces

A block of ma...

Question

A block of mass m is held fixed against a wall by applying a horizontal force F. Which of the following option is incorrect.

A

Friction force = mg

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B

normal will not produce torque

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C

F will not produce torque

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D

normal reaction = F

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Solution

The correct option is A Friction force = mg
R.E.F image
block is at rest so
net force = 0
gravitational force is block
by frictional force.
friction force = mg
normal reaction = F
incorrect ans = c

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