A cart with mass 30kg went 40meter in a straight line on a plain and smooth road when a force of 3 N was applied to it. how much work was done?
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40= 1/2at^2. ( u=0)
80= at^2 = v*t ________1.
2as= v^2- u^2
80a=v^2
80= at^2 = v*t ________1.
2as= v^2- u^2
80a=v^2
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