Question

A driver decreases the speed of the car from 20 km/s in 5 seconds. Find the acceleration

Answer 1

Answer:-4km/s^2

Explanation:

Answer 2

Explanation:

final velocity =0km/s. i.e 'v'

initial velocity =20 km/s. i.e 'u'

time = 5s i.e 't'

a=(v - u) /t

=(0 - 20)/5

=-20 /5

= -4

there acceleration =4 km /s ^2