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If the velocity of a body is doubled its kinetic energy ________________.
  • a)
    Is also doubled
  • b)
    Becomes half
  • c)
    Becomes 1/4th
  • d)
    Become 4 times
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
If the velocity of a body is doubled its kinetic energy _____________...
Kinetic energy is directly proportional to the mass of the object and the square of its velocity: K.E. = 1/2 m v2
If v'=2v
Then K.E'=m(2v)2/2 =2mv2
=4(mv2)/2
=4fK.E).
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If the velocity of a body is doubled its kinetic energy ________________.a)Is also doubledb)Becomes halfc)Becomes 1/4thd)Become 4 timesCorrect answer is option 'D'. Can you explain this answer?
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