On a graph that shows velocity on the vertical axis and time on the horizontal axis,zero acceleration is represented by
A)a straight line with a positive slope.
B)a straight line with a negative slope.
C)a straight line with zero slope.
D)either a,b,or c.
E)None of these is correct.

Question

Quizplus · Accepted Answer

Acceleration is the rate of change of velocity with respect to time. If acceleration is zero, it means that the velocity is not changing, and thus the graph would be a straight line with zero slope. It cannot be option A or B because a positive/negative slope would indicate acceleration in the positive/negative direction. Therefore, the correct choice is C.

On a Graph That Shows Velocity on the Vertical Axis