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Define work. If 50 N force displaces a 2 kg mass by 5 m in its direction, find the work done. Estimate the power, if the time elapsed in 10 s.



Work is said to be done when a force produces displacement in a certain direction

2 4 2
units of power are J/sec or Watts.

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Work is said to be done when a a force acting on an object displaces it from one point to another in it's direction.

Force (F)= 50N
displacement (s)= 5m
Work done = Fs = 50×5 = 250J

time elapsed = 10s
Power = W/t = 250/10 =  25 J/s = 25W
3 5 3
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