Posted by **Kirbi** on Wednesday, June 18, 2014 at 4:23pm.

A person of mass 83.8 kg escapes from a burn- ing building by jumping from a window situ- ated 25 m above a catching net.

The acceleration of gravity is 9.8 m/s2 .

If air resistance exerts a force of 109.1 N on him as he falls, determine his speed just before he hits the net.

Answer in units of m/s

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