Question

The acceleration-time graph of a particle moving along a straight line is as shown in figure. At what time the particle acquires its initial velcoity ?

A. 3 sec
B. 5 sec
C. 6 sec
D. 16 sec

Answer 1

Correct Answer - C
Area of `a - t` graph gives `Delta vec(V)`, i.e., change in velocity. If `v_(f) = v_(i)`, as mentioned in the question then , `Deltav = 0 rArr "area" = 0`