(a)[2]
State the meaning of simple harmonic motion.
(b(i))[1]
Calculate the period of the oscillation.
(b(ii))[2]
Determine the oscillation amplitude $x_0$.
(b(iii))[1]
Use your result in (b)(ii) to determine an equation for $v$ in terms of the block's displacement $x$, where $v$ is in $\text{m s}^{-1}$ and $x$ is in $\text{m}$.
(b(iv))[3]
On Fig. 5.1, sketch how $v$ varies with $x$.
(iv)[3]
On Fig. 5.1, sketch the graph of $v$ against $x$.