A 81 kg person escapes from a burning building by jumping from a window 22 m above a catching net. The acceleration of gravity is 9.81 m/s 2 .

A 81 kg person escapes from a burning building by jumping from a window 22 m above acatching net.The acceleration of gravity is 9.81 m/s2.Assuming that air resistance is simply aconstant 99 N force on the person during thefall, determine the person’s velocity just before hitting the net.Answer in units of m/s