A particle covers half of its total distance with speed v_(1) and the rest half distance with speed v_(2) Its average speed during the complete journey is

A particle travels first half of the total time with speed v_1 and second half time with speed v_2. Find the average speed during the complete journey.

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.

A particle travels first half of the total distance with constant speed v_1 and second half with constant speed v_2. Find the average speed during the complete journey.

A car complete the first half of its journey with speed v_(1), and the rest half with speed v_(2). The average speed of the car in whole journey:

If a car covers (2)/(3) of the total distance with speed nu_(1) and (3)/(5) distance with speed v, then average speed is

If a car covers 2/5 th of the total distance with v_(1) speed and 3/5th distance with v_(2) then average speed is