Question

multiple - choice question
when summer is moving forward at a constant 4 m/s the velocity vs. time graph is:
a horizontal line at 4 m/s on the y - axis
a straight line with a slope of 4 m/s
a horizontal line at zero.

Explanation:

Step1: Recall velocity - time graph properties

In a velocity - time graph, velocity is on the y - axis and time is on the x - axis.

Step2: Analyze constant velocity

When an object has a constant velocity, the value of velocity does not change with time. A horizontal line on a velocity - time graph represents a constant velocity. Since Summer is moving at a constant 4 m/s, the graph will be a horizontal line at 4 m/s on the y - axis. A straight line with a non - zero slope represents an accelerating or decelerating object, and a horizontal line at zero represents an object at rest.

Answer:

A horizontal line at 4 m/s on the y - axis.