Power required by a boy of mass 30 kg to run up a staircase of 40 steps in 10 seconds in (Height of each step is 15 cm) (Take g = 10 m/s2)

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Q: 9 (NDA-II/2013)
Power required by a boy of mass 30 kg to run up a staircase of 40 steps in 10 seconds in (Height of each step is 15 cm) (Take g = 10 m/s2)
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question_subject: 

Science

question_exam: 

NDA-II

stats: 

0,1,2,0,1,2,0

keywords: 

{'staircase': [0, 0, 0, 1], 'watt': [0, 0, 1, 5], 'steps': [0, 0, 0, 1], 'power': [24, 3, 21, 61], 'step': [2, 0, 0, 5], 'kg': [0, 1, 9, 24], 'height': [0, 0, 1, 2], 'mass': [0, 0, 2, 3], 'seconds': [3, 3, 8, 6]}