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140 A body of mass 2 kg is projected at a speed of 20 m...

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140 A body of mass 2 kg is projected at a speed of 20 m s from a pillar of height 40 m at an angle of 30 with the horizontal in upward direction Speed with which it will hit the ground is 2 20 3 m s 4 40 m s BUCO 1 30 m s nsini 3 25 m s

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