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Escape velocity of a body of 1 kg mass on a planet is 100 m/sec. Gravitational Potential energy of the body at the Planet is

(a) – 5000 J (b) – 1000 J

(c) – 2400 J (d) 5000 J

Answer: A

PrevPreviousThe gravitational potential energy of a body of mass ‘m’ at the earth’s surface -mgRe . Its gravitational potential energy at a height Re from the earth’s surface will be (Here is Re the radius of the earth)

NextA body of mass m is placed on the earth’s surface. It is taken from the earth’s surface to a height h=3R . The change in gravitational potential energy of the body isNext

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