You pull a simple pendulum of length $0\mathrm{.}245$ mm to the side through an angle of $3\mathrm{.}503\mathrm{.}50$ and release it$.$ How much time does it take the pendulum bob to reach its highest speed? How much time does it take if the pendulum is released at an angle of $1\mathrm{.}751\mathrm{.}75$ instead of $3\mathrm{.}503\mathrm{.}50?$