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

April 10, 2022

by Ezee_Notes

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Physics Problems

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) $\dfrac{3aT}{2}$

(D) aT

Answer : option (C)

Solution :

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