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A woman pushes a box on railway platform which has rough surface She applies a...

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A woman pushes a box on railway platform which has rough surface She applies a force of 20 N over a distance of 5 m thereafter gets tired and applied force which reduces linearly to 10 N with distance The total distance which box has been moved is 10 m Work done during second displacement is 1 175 J 3 75 J NCERT Pg 119 2 19 5 J 4 14 65 J

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