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12. The weight of a person on a planet A is about half that on the earth. He can jump upto 0.4 m heighton the surface of the earth. How high he can jump on the planet A?

Answer»

Since, weight of the person on planet A is half that on the earth, acceleration due to gravity there, will be 1/2 that on the earth. Hence he can jump double the height with the same muscular force.

Since weight is half, so he is lighter and will jump double the normal height, that is 0.8 m.



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