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

Answer:

${ \boxed{ \pmb{power = \frac{force \times distance}{time} }}}$

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

${ \rm{power = \frac{500 \times 1200}{10} }} \\ \\ { \rm{power = \frac{600000}{10} }} \\ \\{ \underline{ \underline{ \rm{ \dashrightarrow \: \: power = 60,000 \: newtons \: \: }}}}$