Science, asked by mukul9a242020, 8 months ago

a man of mass 50 kg runs up aflightof stair riseof 5 m in 4 second what is the work done by man

Answers

Answered by Poonambhumi68

0

Answer:

Explanation:Given, mass of the boy, m=40kg ;

total height gained, h=50×10cm

=500cm=5m

time taken to climb, t=5s

Work done by the boy,

W=mgh=(40)(10)(5)=2000J

Power developed, P=

t

W

=

5

2000

=400W

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