A standing 80 kg man steps off a 2.9 m high diving platform and begins to fall from rest. The man comes to rest 2.0 seconds after reaching the water. What average force did the water exert on him?

Explanation:

Given data

Mass m=80 kg

Distance s=2.9 m

Time t=2.0 s

To find

Average Force

Solution

First we need to find the velocity

So

At 2.0 seconds the force must first overcome gravity

So

Force due to gravity=mass×gravity

                                 =(80kg)×(9.8m/s²)

                                 =784N

To Slow him F×t=mV

The Net Force is given as:

mass and volume are the answers you are looking for