NEET 2003 Physics question
The acceleration due to gravity on the planet A is 9 times the acceleration due to gravity on planet B. A man jumps to a height of 2 m on the surface of A. What is the height of jump by the same person on the planet B.
Answer: (2)
Solution
The person does the same work (gives the same take-off kinetic energy) on both planets, and this equals the potential energy gained at the top: mg_Ah_A = mg_Bh_B (equivalently with the same take-off speed). $
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