Question

The velocity of a car changes from 10 m/s to 40 m/s in 60 seconds. What is the acceleration of the
car?​

Answer 1

A=(v-u) /t

=(40-10)/60

=30/60

=0.5m/s-2

Answer 2

Given : The velocity of a car changes from 10 m/s to 40 m/s in 60 seconds.

　

To find : What is the acceleration of the car?

　

Applying formula :

★ Acceleration = Final velocity - Initial velocity/Time.

　　　　　　　　Or

★ a = v - u/t.

　　

Calculations :

→ Acceleration = 40 - 10

→ Acceleration = 30

　

→ Acceleration = 30/60

→ Acceleration = 0.5 m/s²

　

Therefore, 0.5 m/s² is the required acceleration.