Question

A car moving at 18 m/s stops in 3 seconds with
uniform retardation, Find the retardation?​

Answer 1

Initial vocity=18m/s

Final velocity=0m/s

Time 3 sec

Acceleration=v-u/t

0-18/3

-18/3=

-6 m/s answer

Answer 2

Answer:

6 m / second square

Explanation:

retardation change in speed respect to time so car moving with 18 metres per second speed stops its final speed becomes zero after 3 seconds so change in speed is 18 metres per second