If the displacement-time graph for the motion of a car is parallel to the time axis, the velocity of that car is:

Constant but not zero

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Zero

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Infinite

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Linearly increasing

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Solution

The correct option is C Zero
According to distance - time graph,

Distance-time graph means that Distance is the y axis, and Time is the x axis.
If we draw a line that is parallel to the x axis, then it's slope is null .
Since the change in distance is zero, because the slope is zero, we can deduce that the velocity is also zero.

Hence, Option B is correct.

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