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Comprehension-1A block having mass 4 kg is pushed down along an inclined plane of inclination 53 with a force of 40 Nacting parallel to the incline. It is found that the block moves on the incine with an acceleration o10 m/s. The initial velocity of block is zero (take g 10m/s)a Find the work done by the applied force in the 2 seconds from starting of motion,(A) 800 J(B) -800 J(C) 640 J(D)-640J |
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