Question

An archer uses an average force of 50.0 N to draw the string of his bow through a distance of 0.412 m. Then, he fires a 297 g arrow straight up into the air. What is the maximum speed of the arrow at the instant it leaves the bow?

Answer 1

$$mgh=Fs$$

$$(0.297)(9.8)h=(50)(0.412)$$

$$h=7.08\ m$$