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When a car moving with 180 km/h velocity,becomes stationary in 5 s, its average retardationms-2 |
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Answer» V = u+at , u = 180km/h = 180*5/18 = 50m/s when car stops at t = 5 sec , then v = 0 so, 0 = 50 +a*5 => a = -50/5 = -10 m/s² avg retardation = 10m/s² thanks |
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