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# The graph shows the displacement of a particle going along x-axis as a function of time. The force acting on the particle is zero in the region

1)AB

2)BC

3)CD

4)DE

Can you answer this question?

In a displacement time curve straight line represent constant velocity and no acceleration
Therefore no force is acting during AB and CD
Hence c is the correct answer.
answered Jul 11, 2013 by
edited May 27, 2014