If the velocity versus time graph of an object is a straight line making an angle of +30° (counter clockwise) with the time axis, the object is
A) moving with constant non-zero speed.
B) moving with constant non-zero acceleration.
C) at rest.
D) moving with increasing acceleration.

Question

Quizplus · Accepted Answer

A straight line in a velocity-time graph indicates constant acceleration, not constant speed. The angle with the time axis suggests a positive slope, indicating the velocity is increasing over time at a constant rate, hence constant acceleration.

If the Velocity Versus Time Graph of an Object Is