Question

five stages - labeled a, b, c, d, and e - of an objects motion are represented by the position - time graph below. during which stage(s) does the object have a positive velocity? tap on the buttons below to answer. select all that apply.

Explanation:

Step1: Recall velocity - position - time relation

Velocity is the slope of the position - time graph, $v=\frac{\Delta x}{\Delta t}$. A positive slope indicates positive velocity.

Step2: Analyze each stage

• Stage A: The slope is negative as the position is decreasing with time.
• Stage B: The slope is zero as the position is constant.
• Stage C: The slope is positive as the position is increasing with time.
• Stage D: The slope is zero as the position is constant.
• Stage E: The slope is positive as the position is increasing with time.

Answer:

C. Option C, E. Option E