Asked by sarah
a racing dog is initially running at 10.0 m/s, but is slowing down. (a) How fast is the dog moving when its kinetic energy has been reduced by half?
Answers
Answered by
bobpursley
if 1/2 mv^2 is 1/2 of what it was, then veloicy must be sqrt(1/2) of what it was.
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