Question

A 0.075kg arrow is fire horizontally. The bowstring exerts an average force of 65N on the arrow over a distance of 0.09m. With what speed did the arrow leave on bow. Show complete solution.

Answer 1

Find the acceleration:

$$a=F/m.$$

The speed:

$$v=\sqrt{2ad}=\sqrt{2\frac Fmd}=\sqrt{2·\frac{65}{0.075}·0.09}=12.5\text{ m/s}.$$