Jasmineyjulz Jasmineyjulz

05-08-2016
Physics

contestada

If the velocity of an object is doubled, its kinetic energy is ______.. a.. doubled. c.. quadrupled. b.. decreased. d.. unaffected. .

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HomertheGenius HomertheGenius

06-08-2016

Kinetic energy formula:
E k = m v²/2
If the velocity is doubled:
E k 1 = m ( 2 v )² / 2 = 4 m v² / 2 = 4 E k
Answer: kinetic energy is quadrupled.

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