The displacement-time graph of a moving particle with constant acceleration is shown in. The velocity-time is given by
.

Options

A.
B.
C.
D.

Answer

A

Explanation

At `t=0` slope of the x-t graph is zero, hence, velocity is zero at `t=0` As time increases slope increases I negative direction, hence, velocity increases in negative direction at point `I` slope changes suddenly from negative to positive value: hence, velocity changes suddenly from negative to positive and then velocity starts decreasing and becomes zero at 2 optionn (a) represents all these clearly.