A boy swims in a 100 m long pool. He covers 60 m with a velocity of 20 m/s and covers the rest of the distance with a velocity of 10 m/s. Calculate the average velocity of the boy.

A body goes from A to b with a velocity of 20m/s and comes back from B to A with a velocity of 30m/s. The average velocity of the body during he whole journey is

A car is travelling along a straight line and covers one-fourth of the total distance with a velocity of 10m/s. the remaining distance is covered with a velocity of 5m/s. calculate the average velocity of the car.

A body moves with a velocity of 10 m/s for 10 s and then with a velocity of 20 m/s in the same direction for 40 s. Find its average velocity.

A body covers first 1/3 part of its journey with a velocity of 2m//s , next 1/3 part with a velocity of (3m)/s and rest of the journey with a velocity 6m//s . The average velocity of the body will be

A body covers first 1/3 part of its journey with a velocity of 2m//s , next 1/3 part with a velocity of (3m)/s and rest of the journey with a velocity 6m//s . The average velocity of the body will be

A body covers half the distance with a velocity 10 m/s and remaining half with a velocity 15 m/s along a straight line. The average velocity will be-

A body covers half the distance with a velocity 10 m/ s and remaining half with a velocity 15 m/s along a straight line. The average velocity will be-

A car travels half the distance with a constant velocity of 40 m//s and the remaining half with a constant velocity of 60 m//s . The average velocity of the car in m//s is

A particle travels A to M along a straight line with a velocity of 8 m/s and M to A with a velocity of 2 m/s, then the average velocity for the whole journey is –

Solve the following examples: (numerical problems) A body moves along a straight line at a velocity of 10 m/s for 10 s and then at a velocity of 15 m/s for 15 s. Find the average velocity of the body.