Question

2.A girl of mass 50kg climbs a flight of a stair having 40steps each of 30m high in 10 s. Calculate the power developed by the girl.​

Answer 1

`{ \boxed{ \pmb{power = (force * distance)/(time) }}} \\`

• force → (50 × 10) = 500 N
• distance → (30 × 40) = 1200 m
• time → 10 seconds

`{ \rm{power = (500 * 1200)/(10) }} \\ \\ { \rm{power = (600000)/(10) }} \\ \\{ \underline{ \underline{ \rm{ \dashrightarrow \: \: power = 60,000 \: newtons \: \: }}}}`