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CHHAYA PUBLICATION-WORK AND ENERGY-PROBLEM SET -I
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- An object of mass 25 g is under water at a depth of 50 cm . Relative ...
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- A constant force vecF =(-hati+2hatj+3hatk) N acts on a body. How much ...
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- A force vecF =(2hati-6hatj)N is applied on a body which is sliding ove...
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- A particle moves from position vecr1=2hati+3hatj to position vecr2=3ha...
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- The relation between the displaement x and the time t for a body of ma...
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- A man pushes a roller with a force of 60N through a distance of 30 m. ...
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- A rain drop of radius 2mm falls from a height of 250 m above the groun...
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- A boy of mass 20 kg , moved up to the top of a building of height 18 ...
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- Against an average pressure of 10 cm of mercury, a human heart pumps 5...
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