Question

A worker drops a wrench from the top of a tower 101.3 m tall. What is the velocity when the wrench strikes the ground?

Answer 1

`\begin{gathered} g=9.81m/s^2 \\ h=101.3\text{ m} \\ v^{}_f=? \\ vf^{}=√(2gh) \\ vf^{}=\sqrt[]{2(9.81m/s^2)(101.3\text{ m})} \\ vf^{}=\sqrt[]{1897.506m^2/s^2} \\ vf^{}=44.6\text{ }m/s \\ \text{The velocity is }44.6\text{ }m/s \end{gathered}`