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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

    • Posted by Savitajain Jain 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Geeta Geeta 6 years, 10 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

    P2 /P1 = 1.25 / 5x 10-3 = 250 

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

    0Thank You

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