Question

For a constant acceleration,a car accelerate from rest to speed of 10 m/s in 5 secs

Answer 1

Given:-

• Initial velocity,u = 0m/s

• Final velocity ,v = 10m/s

• Time taken ,t = 5s

To Find:-

• Acceleration ,a

Solution:-

As we know that acceleration is defined as the rate of change of velocity at per unit time.

• a = v-u/t

Substitute the value we get

➨ a = 10-0/5

➨ a = 10/5

➨ a = 2m/s²

Therefore, the acceleration of the car is 2m/s².

Additional Information!!

• The rate of change of velocity at per unit time is called acceleration .

• SI unit of acceleration is m/s²

• It is vector Quantity ( both magnitude and direction).

Answer 2

=> v = u + at

=> a = 10-0/5

=> a = 10/5

=> a = 2m/s²

acceleration of car is 2m/s².