Question

a car increases its speed from 36 km/h to 72 km/h in 4 minutes.Find the acceleration

Answer 1

a=v-u/t

=> v=72km/h => 72×5/18
=> 20m/s
u = 36km/h => 36×5/18
=> 10m/s
a = 20-10/ 4

a=10/4
=> 2.5

Answer 2

Hey there!

Given,

Initial velocity(u) = 36 km/h = 36*5/18 = 10 m/s

Final velocity(v) = 72 km/h = 72*5/18 = 20 m/s

Acceleration(a) = ?

Acceleration = (v-u)/t

= (20-10)/4

= 10/4

= 2.5 m/s^2

Hope It Helps You!