The graph between the displacement x and time | vedclass

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Question

(b) Region $OA$ shows that graph bending toward time axis i.e. acceleration is negative.
Region $AB$ shows that graph is parallel to time axis i.e. v

Vedclass · Accepted Answer

$-   \,\,0   \,\,+ \,\,  0$

Vedclass · Answer

(b) Region $OA$ shows that graph bending toward time axis i.e. acceleration is negative.
Region $AB$ shows that graph is parallel to time axis i.e. velocity is zero. Hence acceleration is zero.
Region $BC$ shows that graph is bending towards displacement axis i.e. acceleration is positive.
Region $CD$ shows that graph having constant slope i.e. velocity is constant. Hence acceleration is zero.

The graph between the displacement $x$ and time $t$ for a particle moving in a straight line is shown in figure. During the interval $OA,\,AB,\,BC$ and $t = 1,\;{v_x} = 0$, the sign of acceleration of the particle at $OA, AB, BC, CD$ is respectively

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