A particle moves in a straight line from `A` to `B` with speed `v_(1)` and then from `B` to `A` with speed `v_(2)`. Find the average velocity and average speed.

A partical moves in a straifgt line from A to B for the first 30 km with speed 10 km//h and the next 60 km with speed 20 km//h . Find the average speed and average velocity.

A partical moves from A to B for the first one-third with speed v_(1) and the next two-third time with speed v_(2) . Find the average speed.

A particle moves in a straight line from A to B (a) for the first half of distance with speed v_(1) and the next half of distance with speed v_(2) . (b) for the first one-third distance with speed v_(1) and the next two-third distance with speed v_(2) . (c ) for the first one-fourth distance with speed v_(0) , the next half of distance with speed 2v_(0) and the last one-fourth distance with speed 3v_(0) . Find the average speed in each case.

Velocity-time graph of a particle moving in a straight line is shown in figure. In the time interval from t = 0 to t = 14 s, find (a) average velocity and (b) average speed of the particle.

Velocity-time graph of a particle moving in a straight line is shown in figure. In the time interval from t = 0 to t = 14 s, find (a) average velocity and (b) average speed of the particle.

If a body travels for time 't' with speed v_1 and then it further travels for time 't' with speed v_2 find the average speed.

If a particle travels the first half distance with speed v_(1) and second half distance with speed v_(2) . Find its average speed during journey.