On a graph that shows position on the vertical axis and time on the horizontal axis,a parabolic curve that opens downward represents
A)a constant positive acceleration.
B)a constant negative acceleration.
C)no acceleration.
D)a positive followed by a negative acceleration.
E)a negative followed by a positive acceleration.

Question

Quizplus · Accepted Answer

A parabolic curve opening downward represents a constant negative acceleration. This means that the object's velocity is decreasing at a constant rate over time, which results in a curvature that points downwards. Options A, C, D and E do not fit this description.

On a Graph That Shows Position on the Vertical Axis