Work done by the body :, Always positive, Always negative, Always Zero, Positive,Negative or Zero, Work done is said to be Positive when a force causes displacement:, In its own direction, In direction opposite to applied force, In the direction at right angle to the direction of force, None of the above, The unit of work is joule. The other physical quantity that has same unit is, Power, Velocity, Energy, Force, If 20 N of force is applied on a body and the body is displaced by 2 m, then work done on the body is, 5 J, 10 J, 100 J, 40 J, A girl is carrying a school bag of 3 kg mass on her back and moves 200 m on a levelled road. The work done against the gravitational force will be (g = 10 ms²), 60 J, 6 J, 0.6 J, 0 J
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Harish13
Secondary
Physics
Energy and work
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