A 74 kg person escapes from a burning build- ing by jumping from a window 21 m above a catching net. The acceleration of gravity is 9.81 m/s2 .

A 74 kg person escapes from a burning build- ing by jumping from a window 21 m above a catching net.The acceleration of gravity is 9.81 m/s2 .Assuming that air resistance is simply a constant 95 N force on the person during the fall, determine the person’s velocity just be- fore hitting the net.Answer in units of m/s.