Question

A mass M slides upward along a rough plane surface inclined at angle \Theta\: Θ = 0.22 in radians to the horizontal. Initially the mass has a speed V_0\: V 0 = 3.06 m/s, before it slides a distance L = 1.0 m up the incline. After sliding this distance the new speed of the mass isV_0\: V 0 / 4 measured in m/s. What is the coefficient of kinetic friction \mu_k μ k between the mass and the incline?

Answer 1