Question : A car starts from rest and moves with uniform acceleration 𝑎 on a straight road from time 𝑡 = 0 to 𝑡 = 𝑇. After that, a constant deceleration brings it to rest. In this process the average speed of the car is
(A) \dfrac{aT}{4}
(B) \dfrac{3aT}{2}
(C) \dfrac{aT}{2}
(D) aT
Answer : option (C)
Solution :
