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Subjects
Science CBSE
Class 9
Work and energy
Work done and different forms of energy
14.
Find the power of a boy claimbing in a staircase
Exercise condition:
5
m.
A boy of mass
58
\(kg\) runs up a staircase of
60
steps in
12
\(s\). If the height of each step is
11
\(cm\), find his power. Take \(g\) \(=\) \(10\)
m
s
−
2
.
Answer
:
\(W\).
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