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.
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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
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mass = 50kgtime
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
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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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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
HOPE IT HELPS !
PLS MARK AS BRAINLIEST !
DON'T FORGET TO FOLLOW !
✨☺✨
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