## when a car travel at a speed of 60km/he applies brake it comes to rest in 15s then the retardation of the car is

Question

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## Answers ( )

ANSWER:–## ➣

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Given:–• Intial velocity of the car (u) =

Final velocity (v) =

Time =

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## •

SOLUTION:-## We know:-

## • Putting the values:-

0 = 16.67 + a[15]

0 = 16.67 + 15a

15 a = -16.67

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## Therefore, the Retardation of the car is:

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Initial velocity of the car (u) = =

Final velocity (v) = 0 m/s

Time = 15s

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Use this equation

v = u + at

0 = 16.67 + a(15)

15 a = -16.67

15 will shift

Divide it

a =

The retardation of the car =