1.

The graph between the displacement x and time t for a particle moving in a straight line is shown in figure. During the interval OA, AB, BC and CD, the acceleration of the particles is

Answer»

OA- +, AB- 0, BC- +, CD- +
OA- -, AB- 0, BC- +, CD- 0
OA- +, AB- 0, BC- -, CD- +
OA- -, AB- 0, BC- -, CD- 0

Answer :B


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