Question

A man of mass 60kg runs up a flight of 30 steps in 40s. If each step is 20 cm height,calculate his power

Answer 1

Hey!

____________________

Mass of man = 60 kg
Number of steps = 30
Time taken = 40 s
Height of each step = 20 cm
Gravity due to Acceleration = 10 m/s^2

Total height of all steps = 30×20= 600 cm = 6m

Power = mgh/t
Power = 60×10×6/40
Power = 90 W

____________________

Hope it helps...!!!

Answer 2

Answer:

Explanation:

Solution :-

Given :-

Mass, m = 60 kg

Total distance, d = 30 × 20 = 600 cm = 60 × 10⁻² m

Time, t = 40 sec

Acceleration due to gravity, g = 10 m/s²

To Calculate :-

Power, P = ??

Formula to be used :-

P = W/t = mgh/t

Substituting the given values, we get

P = 60 × 10 × 600 × 10⁻²/40

P = 3600/40

P = 90 W

Hence, the power is 90 W.