When the mass and velocity of the body are doubled, what happens to its kinetic energy?
A
It gets doubled
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B
It gets quadrupled
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C
It becomes eight times
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D
It becomes one fourth
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Solution
The correct option is C It becomes eight times K.E = 12mv2
Thus Kinetic energy is directly proportional to mass and velocity. Since mass is directly proportional to K.E and K.E is directly proportional to the square of velocity the kinetic energy becomes eight times.