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28. The position(x) - time () graph of a body of mass 2 kg is shown in figure. If impulse on the bodyatt2sis-10 kg m/s, then value of xo is(a) 10 m(b) 2.5 m(c) 5 m(d) 7.5 mx (m)txo |
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Answer» given impulse at t = 2sec is -10 kgm/s also impulse = mv = 2*v so velocity is = 10/2 = 5 m/s now x° = v*t = 5*2 = 10m option A |
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