Question
Assertion : Velocity-time graph for an object in uniform motion along a straight path is a straight line parallel to the time axis.
Reason : In uniform motion of an object velocity increases as the square of time elapsed.

Answer

(c) In uniform motion the object moves with uniform velocity, the magnitude of its velocity at different instant i.e. at $t=0, t=$ $1 \mathrm{sec}, t=2 \mathrm{sec}, \ldots$. will always be constant. Thus velocity-time graph for an object in uniform motion along a straight path is a straight line parallel to time axis.

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