SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When my velocity triples, my kinetic energy increases by ____ times.
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9
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3
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1.5
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4.5
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Explanation:
Detailed explanation-1: -If velocity v is doubled, the kinetic energy becomes four times as kinetic energy is directly proportional to the square of velocity.
Detailed explanation-2: -Kinetic energy is equal to half of the product mass and velocity. SI unit is joules. 1) If mass doubled then kinetic energy also gets doubled. And according to the question the body is doubled at constant velocity.
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