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(i) 12 m/sec and 3600 N(3) 16 m/sec and 6400 NA body of mass 2 kg is thrown up vertically with a kinetic energy of 490 J. If the acceleration due to gravity(2) 14 m/sec and 4900 N(4) 18 m/sec and 8100 N55.is 9.8 ms2, the height at which the kinetic energy of the body becomes half of the original value is(1) 50 mA pendulum of length 2 m is left at A. When it reaches B, it loses 10% of its total energy due to air resistance.(2) 25 m(3) 12.5 m(4) 10 m56,The velocity at B is(1) 6 m/s(2) 1 m/s(3) 2 m/s(4) 8 m/s |
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