Question

the motion of six objects - a, b, c, d, e, and f - are represented by lines on a velocity-time graph. write the letter(s) for any object that has a positive velocity (for the entire motion). if there are no instances of a positive velocity, then tap on the no answer button.

Explanation:

On a velocity-time graph, positive velocity corresponds to all points on the graph lying above the time (zero velocity) axis for the entire motion.

• Object A: Starts at 0, moves into positive velocity and stays positive.
• Object B: Remains at a positive constant velocity the entire time.
• Object C: Remains at a positive constant velocity the entire time.
• Objects D, E, F: Operate in negative velocity (below the zero axis) or move into negative velocity, so they do not meet the criteria.

Answer:

A, B, C