Question

on a position vs. time graph, which feature would represent motion in the negative direction over time? (1 point)
a horizontal line segment
an upward - sloping line segment
a vertical line segment
a downward - sloping line segment

Explanation:

In a position - time graph, the slope represents velocity. Motion in the negative direction means negative velocity. A downward - sloping line segment has a negative slope. A horizontal line segment means zero velocity (no motion), an upward - sloping line segment means positive velocity (motion in the positive direction), and a vertical line segment is not physically possible as it implies infinite velocity.

Answer:

a downward - sloping line segment