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2C) 980(D) 1020 mA train moving with a speed of 60 km/hr is slowed down uniformly to 30 km/hr for repair purposesduring running. After this it was accelerated uniformly to reach to its original speed. If the distancecovered during constant retardation be 2 km and that covered during constant acceleration bel km.find the time lost in the above journey(A) 1 min(B) 2 min(C)4 min(D) 5 minlogin of narticle from 1= 1 = 20 sec is: |
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Answer» answer c b ok by tick 4 min is the right answer 4min is the correct answer 4 minutes is the answer that is options is correct |
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