Question

A body slipping on a rough horizontal plane moves with a deceleration of 4.0 m/s². What is the coefficient of kinetic friction between the block and the plane ?

Answer 1

Given conditions ⇒

Acceleration(a) = - 4 ms⁻²

Acceleration due to gravity(g) = 10 ms⁻².

∵ μ = ma/mg

∴ μ = a/g

⇒ μ = 4/10

∴ μ = 0.4

Hence, the coefficient of the Kinetic Friction is 0.4.

Hope it helps.