Question

The velocity-time graph for a body with non-uniform motion (assume non-constant acceleration) is a:

• A. straight line making some angle with the positive X axis.
  
• B. straight line parallel to x-axis.
• C. straight line parallel to y-axis.
• D. curved line.

Answer 1

The correct option is D curved line.

Slope of velocity time graph gives acceleration of a body in that particular direction.

When graph is straight line then its acceleration is constant and when the straight line is parallel to x-axis then its acceleration is zero.

Graph parallel to y-axis is not possible.

So for variable acceleration graph will be curved in shape.

So option D is best possible answer.