A body moves with uniform acceleration. The graph between velocity and time is: MCQ with Answer and Explanation

A body moves with uniform acceleration. The graph between velocity and time is:
A. Straight line with positive slope
B. Straight line parallel to time axis
C. Parabola
D. Hyperbola
Answer: Option A
Solution (By JKSSB Mock Tests)
Uniform acceleration means constant rate of change of velocity: a = dv/dt = constant. Thus v = u + at, a linear equation in t. Graph is straight line with slope = acceleration. Parallel to time axis (A) implies zero acceleration (constant velocity). Parabola (C) is for position-time under constant acceleration. Memory tip: 'v-t graph slope = acceleration; area = displacement'. This graph interpretation question tests kinematics fundamentals, frequently examined in competitive exams. Always link graph features to physical quantities: slope, area, intercepts have specific meanings in motion graphs.

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