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The velocity-time plot for a particle mo...

The velocity-time plot for a particle moving on a straight line is shown in figure.

A

The particle has a constant acceleration.

B

The particle has never tumed around.

C

The particle has zero displacement.

D

The average speed in the interval 0 to 10 s is the same as the average speed in the interval 10s to 20 s.

Text Solution

Verified by Experts

The correct Answer is:
A, D
Since the graph is a straight line, its slope is constant. It means acceleration of the particle is constant. Velocity of the particle changes from positive to negative at t= 10 s, so particle changes direction at this time. The particle has zero displacement up to 20 s, but not for the entire motion .
The average speed in the interval of 0 to 10 s is the same as the average speed in the interval of 10 s to 20 s beccause distance covered in both time interval is same.
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