A body moves half of its distance at a speed of 60km/hr and other half at 90 km/hr .what is its average speed
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as distance is same so use
V average = (2 v1 x v2)/v1 + v2
= 2 * 60 * 90 / 60+90 = 2* 3600/150
= 720/15 = 48 km / h
V average = (2 v1 x v2)/v1 + v2
= 2 * 60 * 90 / 60+90 = 2* 3600/150
= 720/15 = 48 km / h
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