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  • A bock of mass M is held against a rough vertical wall by pressing it with a finger.

A bock of mass M is held against a rough vertical wall by pressing it with a finger. If the coefficient of friction between the block and the wall is \mu and the acceleration due to gravity is g, calculate the minimum force required to be applied by the ginger to hold the block against the wall?

Answers (1)

Let M be the mass of the body which is held against the wall by force F. When the condition is balanced, F = N

The minimum force required to hold the block against the wall at rest is F = \frac{Mg}{ \mu}

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