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Gravitation question

2003 · Q163
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Gravitation question

2003 · Q163

NEETPhysicsGravitationMCQ+4 / −1
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?
  1. A
    (2/9) m
  2. B
    18 m
  3. C
    6 m
  4. D
    (2/3) m
View written solutionFree

Correct answer: B

The velocity of the mass while reaching the surface of both the planets will be same.

i.e., 2g′h′=2gh\sqrt {2g'h'} = \sqrt {2gh} 2g′h′​=2gh​

2×g×h′=2×9g×2\sqrt {2 \times g \times h'} = \sqrt {2 \times 9g \times 2} 2×g×h′​=2×9g×2​

⇒2h′=36 \Rightarrow 2h' = 36⇒2h′=36

⇒h′=18 m \Rightarrow h' = 18\,m⇒h′=18m

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