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compare the power at which each …

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compare the power at which each of the follwing is moving upwards against the fore of gravity 1g 210m/s 

1) a butterfly of mass 1g that flies upward at a rate of 0.5m/s 

2) a 250g squirrel climbing on a tree at a rate of 0.5 m.s

  • 1 answers

Geeta Geeta 6 years, 9 months ago

p= mg X v

i) In case of butterfly P1 = 1/1000 x 10 x0.5 = 5 x 10-3 W

ii) In case of squirrel P2 = 250/ 1000 x 10 x 0.5 = 1.25 W

P/P1 = 1.25 / 5x 10-3 = 250 

Thus the power with which squirrel is climbing is much more than that of butterfly

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