You pull a simple pendulum $0\mathrm{.}240$ m long to the side throughan angle of $3\mathrm{.}50\backslash$deg and release it$.($a$)$ How much time does it take the pen$-$dulum bob to reach its highest speed? $($b$)$ How much time does it take ifthe pendulum is released at an angle of $1\mathrm{.}75\backslash$deg instead of $3\mathrm{.}50\backslash$deg $?$