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A car is travelling with the velocity of 72 kom h-! If brakes appliedproduce uniform retardation of 10 m 52 calculate the time taken by it to stop. |
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Answer» Answer: t = 2sec Explanation: RETARDATION (a) = -10m/s² Velocity (v) = 72km/h => 72×5/18 => 20m/s Initial velocity (u) = 0 TIME (t) = ? We know , ★ v = u + at ★ ➞ 20 = 0 + -10 × t ➞ 20 = -10T ➞ t = 20/10 ➞ t = 2sec |
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