A 10 kg boy runs up a staircase of 50 steps , each of 15 cm in height, in 5 seconds . His power is (take g= 10 m/s^2).
a)100W
b)200W
c)300W
d)400W
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Answered by
1
height = 50 × 15/100
= 15/2m
m = 10 kg
g = 10
work done = mgh
= 10 × 10 × 15/2
= 750j
power = 750/5
power = 150w
Hey Friend Power is 150 w but there is no option of 150
= 15/2m
m = 10 kg
g = 10
work done = mgh
= 10 × 10 × 15/2
= 750j
power = 750/5
power = 150w
Hey Friend Power is 150 w but there is no option of 150
akshad81:
9th standard syllabus is very vast
what you think
tanya send reply
Yes it is very lengthy
ya
from which pattern
CBSC or SB
cbse
I am from SB
bye
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0
The answer is 150W....
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