Physics, asked by kenjay47, 1 year ago

A boy whose mass is 45 kg runs up 25 steps each step 30.0 cm high in 50.0 seconds. Find the power in watts expended by the boy.

Answers

Answered by manjeetyadav3437
7
Find an answer to your question A MAN WHOSE mass is 50 kg climbs up 30 steps of a stair in 30 secs, if each step is ...

73 votes

m=50 kgt=30sech=20/100 X 30=6P=W/twork done=mghtherefore,P=mgh/t (g=10m/s^2) =(50*10*6)/30 ...  More

32 votes

mass = 50kgtime 

Answered by MuskanNagar27
40
m = 45kg
h = 25×30
= 750cm = 7.5m
t = 50s
g = 9.8m/s²

Power = mgh/t
= (45)(9.8)(7.5) / 50
= 3307.5 / 50
= 66.15 W


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