A block weighing $17$ N oscillates at one end of a vertical spring for which $k=120\frac{N}{m}$; the other end of the spring is attached to a ceiling. At a certain instant the spring is stretched $0\mathrm{.}24$ m beyond its relaxed length $($the length when no object is attached$)$ and the block has zero velocity. $($a$)$ What is the net force on the block at this instant? What are the $($b$)$ amplitude and $($c$)$ period of the resulting simple harmonic motion? $($d$)$ What is the maximum kinetic energy of the block as it oscillates?