Question $3$ options:

For this question only, round your answers to the nearest hundredth and remember not to include units in the answer.

A $1\mathrm{.}8$ kg ball at the end of a $1\mathrm{.}5$ m string swings in a vertical plane. At its lowest point, the ball is moving with a speed of $16$ m$/$s$.$ Calculate the speed $($in m$/$s$)$ at the top of the path and tension in the string $($in N$)$ at the bottom of its path. What is the speed?