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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 . Hence option (c) is correct .
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