1 Write down the expressions for centripetal force and angularmomentum
2 What are the units of moment of inertia?
3 In Fig.1 show that the tension, T, in the string causing thepulley to rotate is given by
T = m(g-a)
where a is the linear acceleration of the falling mass.
4 In part III, what factors could cause the angular momentum notto be conserved?
