13.In a car race, in a very busy road , a skilled driver has managed to drive his car with uniform velocity of 5m/s for 10 minutes, then average speed of the car in first 2 minutes

solution:

in the question ,the driver managed his car with 5m/s.

the time is 10minutes

the car is moving with uniform velocity with 5m/s that means ,the car has travelled with 5m/s through out the journey.

i.e at 2minutes and 10minutes also ,the car has same velocity.

the average speed of the car is same.i.e.5m/s only.