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A man weighing 60 kg climbs up 45 steps staircase of a building in 9 seconds. If height of each step is 10 cm, then how much power the man has employed ? (Take g = 10 m/s2) |
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|
(a) |
300 W |
(b) |
250 W |
(c) |
500 W |
(d) |
450 W |
|
A man weighing 60 kg climbs up 45 steps staircase of a building in 9 seconds. If height of each step is 10 cm, then how much power the man has employed ? (Take g = 10 m/s2) |
|||||||
|
(a) |
300 W |
(b) |
250 W |
(c) |
500 W |
(d) |
450 W |