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91
Gravitational potential energy of particle
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Answer: Option D
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92
The spoon dropped by an astronaut in a satellite will
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Answer: Option C
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93
What does the work done by gravity depend on?
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Answer: Option A
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94
How is gravitational acceleration represented?
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Answer: Option B
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95
Which of the following statements is false?
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Answer: Option B
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96
In the Earth, the weight of a body is maximum at the
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Answer: Option D
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97
The atmospheric air is held to the Earth by
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Answer: Option A
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98
A boy standing on top of a 20 meter high tower throws a stone with which velocity of stone hits the ground is? (g = 10 m/s2)-
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Answer: Option A
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99
If a body is projected in a vertical direction perpendicularly, what will be the velocity of the body at the highest point of motion?
(g = gravitational acceleration, h = height, t = time)
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Answer: Option A
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100
Calculate the work done by the force of gravity when a satellite moves in the orbit of radius 40,000 km around the earth is-
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Answer: Option A
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