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Question

List I gives some physical quantites, and List II gives some possible graphs

symbols have usual meaning i.e., a, v, x, t stands for acceleration, velocity, position and time. For given v - t graph correct match is? Where at t = 0, particle is at some positive position

A
IU,IIU,IIIU,IVQ
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B
IP,IIQ,IIIR,IVQ
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C
IU,IIP,IIIR,IVS
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D
IU,IIU,IIIU,IVS
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Solution

The correct option is A IU,IIU,IIIU,IVQ
v=mta=dvdt=m
here m is constant so acceleration is constant.
v=dxdtxx0dx=t0mt dt
xx0=mt22x=mt22+x0
So, x-t graph is a parabola.

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