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Classical Mechanics
Level
3
A box at rest is made to slide over on a horizontal surface.The applied force on the box is 35 N and the box attains a velocity of 12 m/s .Calculate the Power applied on the box.
The answer is 210.
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1 solution
Since power=work/time. Since work=force displacement Since displacement=(1/2)at^2 Therefore power=fs/t Therefore (35 (1/2)at^2)/t Since the body was at rest therefore v=at Substituting it In the previous equation and substituting the values in final eqn We get answer as 210 Pls upvote the ans if liked..