On a graph that shows position on the vertical axis and time on the horizontal axis,a parabolic curve that opens upward 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 that opens upward represents a motion with a constant positive acceleration. This is because the curve shows an increasing rate of change in position over time, which is exactly what happens during a motion with a constant positive acceleration. The steeper the curve, the greater the acceleration. This curve can be seen, for example, when an object is thrown upwards and its motion is solely affected by gravity.

On a Graph That Shows Position on the Vertical Axis