GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It will be tripled
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It will be reduced to 1/3 of its original value.
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It will become 9 times its original value
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It will stay the same.
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Detailed explanation-1: -Since the gravitational potential energy of an object is directly proportional to its height above the zero position, a doubling of the height will result in a doubling of the gravitational potential energy. A tripling of the height will result in a tripling of the gravitational potential energy.
Detailed explanation-2: -If the speed triples, how does the kinetic energy change? The kinetic energy increases as the square of the speed. If the speed triples, how does the kinetic energy change? The kinetic energy increases by a factor of 9.
Detailed explanation-3: -When the distance between the objects is tripled then force between them is one ninth. When the masses of both objects are doubled then the force between them is four times. Note: This law is true for each particle of matter, each particle of matter attracts every other particle.
Detailed explanation-4: -The equation KE = ½ mv² shows that the relationship between Kinetic Energy and mass is directly proportional. a)So if the mass triples then the KE triples too. The relationship between Kinetic Energy and velocity is also directly proportional but with the square of the velocity.