(a)[1]
On Fig. 5.1, draw an arrow from the centre of the sphere to show the direction of the resultant force on the sphere in the position shown.
(b(i))[1]
State the amplitude of the oscillations shown.
(b(ii))[2]
Determine the angular frequency for these oscillations.
(b(iii))[2]
Calculate the total energy associated with the oscillations.
(c)[3]
On Fig. 5.3, sketch how the kinetic energy $E_K$ of the sphere varies with $x$.