Question

Q. When a bus driver

travelling at a speed of 30m/s
applies brakes and brings the
bus to rest in 20 sec, then what
will be the retardation?
​

Answer 1

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A car driver is traveling at a speed of 10m/s .

e.g., initial velocity , u = 10m/s

He applied break and brings to the car to rest in 20s.

so, time taken to stop the car = 20s

we have to find retardation.

final velocity of car , v = 0

use formula, v = u + at

0 = 10 + a20

a = -1/2 m/s² [hereative sign shows retardation]

Answer 2

Explanation:

This is the answer

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