A car starting from rest is accelerates at a constant rate `alpha` until it attains a speed v .It is then retarded at a constant rate `beta` until it comes to rest. The average speed of the car during its entire journey is

A car starting from rest is acceleration at constant rate until it attains a speed of 12 m/s. It moves with the constant speed 12 m/s for some time and then it is retarded at other constant rate until it comes to rest. Considering theta the car moves with constant speed for half of the time of total journey, what will be the average speed of the car for the whole journey (in m/s) ?

A car starting from rest is acceleration at constant rate until it attains a speed of 12 m/s. It moves with the constant speed 12 m/s for some time and then it is retarded at other constant rate until it comes to rest. Considering theta the car moves with constant speed for half of the time of total journey, what will be the average speed of the car for the whole journey (in m/s) ?

A car accelerates from rest for time t_1 at a constant rate alpha and then it retards at the constant rate beta for time t_2 and comes to rest.Find the value of t_1 // t_2 .

A car starting from rest, accelerates at a constant rate of 5 ms for some time. It then retards at a constant rate of 10 ms and finally comes to rest. If the total time taken is 6 s, what is the maximum speed attained by the car:

A car starts moving on a straight road. It makes the entire journey in three parts. The total time of journey is 25 s. For first part it accelerates at a constant rate 5m//s^(2) . For second part it moves with a constant speed. For the third part it retards at constant rate 5m//s^(2) to come to rest. If the average speed for entire journey is 20 m/s, time period of first part of journey is

A car starts moving on a straight road. It makes the entire journey in three parts. The total time of journey is 25 s. For first part it accelerates at a constant rate 5m//s^(2) . For second part it moves with a constant speed. For the third part it retards at constant rate 5m//s^(2) to come to rest. If the average speed for entire journey is 20 m/s, time period of first part of journey is

A car at rest accelerates at a constant rate alpha for sometime after which it decelerates at a constant rate beta to come ot rest . If the total time elapsed is t second find the maximum velocity attained.

A car at rest accelerates at a constant rate alpha for some time, after which it decelerates at a constant rate beta to come to rest. If the total time elapsed is t second, find the maximum velocity attained.

A car starting from rest, accelerates at a constant rate x for sometime after which it decelerates at a constant rate y to come to rest. If the total time elapsed is t, the maximum velocity attained by the car is given by

A car accelerates from rest at a constant rate alpha for sometime , after which it decelerates at a constant rate beta and comes to rest. If T is the total time elapsed, the maximum velocity acquired by the car is