Question

question 13 (4 points) (01.09 mc) a position - time graph is shown below. position vs. time which of the following describes the speed - time graph for the motion of the object? a a zero horizontal line b a non - zero horizontal line c an increasing diagonal line d a decreasing diagonal line

Explanation:

Step1: Recall speed - position - time relation

Speed is the slope of the position - time graph.

Step2: Analyze given position - time graph

The position - time graph is a straight line. The slope of a straight line is constant. Since the line is not horizontal, the slope is non - zero.

Step3: Determine speed - time graph

A non - zero constant slope in the position - time graph means a non - zero constant speed. So, the speed - time graph is a non - zero horizontal line.

Answer:

B. A non - zero horizontal line