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38 A crane lifts a mass of 200 kg to a height of 10 m...

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38 A crane lifts a mass of 200 kg to a height of 10 m in 10 second The power of the crane is g 10 m s 1 1 KW 3 3 kW 39 Power supplied to a varies with time as P 2 2 kW 4 4 kW particle of mass 1 kg 3t watt t is in second 2 and initially particle was at rest Velocity of the particle at t 3 sec is 1 2 ms 1 2 4 ms 1 3 3 3 ms 1 4 6 ms 1 Medica

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