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The distplcement time graph of a prticle...

The distplcement time graph of a prticle moving alon a staraingt line is drawn below

The acceleration of the paritcle during the regions OP, PQ and QR are

A

`{:(OP,PQ,QR),(-,0,+):}`

B

`{:(OP,PQ,QR),(+,0,+):}`

C

`{:(OP,PQ,QR),(+,0,-):}`

D

`{:(OP,PQ,QR),(-,0,-):}`

Text Solution

Verified by Experts

The correct Answer is:
C
Acceleration `=(d^(2)x)/(dt^(2))`
For part OP, the acceleration is positive as the velocity is increasing, slope is increasing. For part PQ, the acceleration is zero. Horizontal straight line shows that the velocity is zero. For part QR, acceleration is negative. It is retarded motion. Velocity is decreasing as the slope decreases with time.
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