Question

A boy of weight 40kgf climbs up the 15 steps each 15cm high in 10s and a girl of weight 20kgf does the same in 5s. Compare : (i)the work done and (ii) the power developed by them. Take g=10N/kg

Answer 1

Hope you get the answer. Power doveloped by boy will be 3/5 watt. #calculationerror