Question

a boy of mass 50 kg runs up to Kaif of 45 steps in 9 second if the height of the stumps 15 cm find his power if g=10 per ms​

Answer 1

Answer:

m = 50 kg

h = 45 x15

= 675 cm

= 6.75 m

t = 9 s

g = 10 m

PE = mgh = 50 x 10 x 6.75

= 3375 J

Power of the body

= PE / time

= 3375 / 9

= 375 W

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Explanation:

Answer 2

Explanation:

m=50kg

h=45×15

=675cm

=6.75m

t=9s

g=10m

pg=mgh= 50×15×6.75

=3375J

power of the body

=pe/t

=3375/9

=375W

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