Question

A metal block of mass 5kg lies on a rough horizontal platform. If a horizontal force of 8N applied to the block through it's centre of mass just slides the block on the platform, what is the coefficient of limiting friction between the block and the platform?​

Answer 1

Step-by-step explanation:

Formula for finding coefficient of limiting friction

Let c be the coefficient of limiting friction.

`c = (f)/(r)`

where f is the frictional force and r is the normal force.

But r = m×g= 5×10= 50N

`c = (8)/(50) = 0.16`

Therefore the coefficient of limiting friction is 0.16