Certain force acting on a 20 kg mass changes its velocity from 5 ms 4 to 2 mst
Calculate the work done by the force.
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Explanation:
mass =20kg
v = 5ms
u = 2ms
work done = change in K.E
W = 1/2 mv^2- 1/2mu^2
W = 1/2m(v^2-u^2)
W =
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