A boy runs up the stairs, elevating his 102 kg body a vertical distance 2.29 m in a time of 1.32 s at a constant speed. Determine the work done in climbing the staircase and the power generated by him
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1
Answer:a. 2.30 x 10*3 J
b. 1.73 x 10*3 W
Answered by
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Given,
F=Weight of a boy=102kg
vertical distance=2.29m
Time=1.32s
To find,
W.D. in climbing the staircase=?
power generated=?
Solution,
Work done= force × distance
=102×2.29
=2.33×10³ J
Power generated by the boy=W/ΔT
=2.33×10³ J / 1.32 s
=1.47× 10³watt.
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