Question

Which of the following statement is not correct regarding the motion of a particle in a straight line?

• A. x-t graph is a parabola, if motion is uniformly accelerated.
• B. v-t us a straight line inclined to the time axis, if motion is uniformly accelerated.
• C. x-t us a straight line inclined to the time axis, if motion is uniform and acceleratioin is zero
• D. v-t graph is a parabola, if motion is uniform and acceleratioin is zero

Answer 1

The correct option is D v-t graph is a parabola, if motion is uniform and acceleratioin is zero

Velocity – Time Graph of any object moving with certain uniform acceleration. When the velocity-time graph will be plotted for an object moving with uniform acceleration, the slope of the graph is a straight line. The pattern of the slope of the graph shows that the object is moving with uniform acceleration. For uniform motion with zero acceleration, the v-t graph will be a straight line parallel to the time axis and not the parabola. This is shown in Fig –(a).

The correct option is D.