Question

a) An L-shaped object of uniform density is hung over a nail so that it is free to rotate.
Determine the angle that the long side of the object makes with the vertical. The long
side of the L-shaped object is given to be twice as long as the short side.
b) A solid cylinder rolls up an inclined plane without slipping. If the incline makes an angle
of 30º to the horizontal and the coefficient of static friction is μs = 0.40, find its
acceleration. Also determine the angle of the inclined plane at which the object will start
to slip.