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2) 2046 J 344 J (4 ZeroWork done in time t on a body of mass m whichis accelerated from rest to a speed v in time t, asa function of time t is given by 2as1 V +2V 12 S(1) 2mtV 12(4) 2mlf mV, 12unduith |
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Answer» W = F × sandF = m × asoW = m × a × s"The body is accelerated from 0 to v in time t1"sov = 0 + a × t1a = v / t1The distance traveled in a certain time t is W = m × (v / t1) × ( (v × t²) / (2 × t1) )Rearranging the equation,W = (m × v² × t²) / (2 × t1²)Or, W = ( m × v² / 2 ) × ( t / t1 )² |
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