Exercise 6.14 A block of mass m = 4.8kg is initially held at rest on an inclined
plane with a θ = 30◦ slope, at a height of h = 1m. It is attached to a cylindrical
pulley at the top of the slope (mass M = 1.7kg and radius 8cm) by a massless
string that unwinds as the block is allowed to slide downhill. (i) If the acceleration
of the block is a = 1.9 m
s2 , what is μk ? (ii) Find the velocity v at the bottom of the
slope using forces and torques. Repeat using energy ideas.