A car is travelling with the velocity of 72 kom h-! If brakes applied

1.	A car is travelling with the velocity of 72 kom h-! If brakes applied produce uniform retardation of 10 m 52 calculate the time taken by it to stop.
Answer» ONG>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

A car is travelling with the velocity of 72 kom h-! If brakes applied produce uniform retardation of 10 m 52 calculate the time taken by it to stop.

Answer» ONG>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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A car is travelling with the velocity of 72 kom h-! If brakes applied produce uniform retardation of 10 m 52 calculate the time taken by it to stop.​

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A car is travelling with the velocity of 72 kom h-! If brakes applied produce uniform retardation of 10 m 52 calculate the time taken by it to stop.