Bet it's easy..........Solve it.
Classical Mechanics
Level
pending
A man`s weight is 70.His kinetic energy is 1715.What is his velocity?
The answer is 7.
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1 solution
We know, Ek=1/2mv^2 Given that, Ek=1715 and m=70 So, Ek=1/2mv^2 or,v^2=2Ek/m =2*1715/70 =3430/70 =49 v=7 Here`s your solution.