Question

question 8 1 pts the graph above describes the motion of a ball. at what point does the ball have an instantaneous velocity of zero? oa od ob oc question 9 1 pts the motion of a ball on an inclined plane is described by the equation. which of the following quantities must have a value of zero?

Explanation:

Step1: Recall velocity - time graph concept

Instantaneous velocity is zero when the slope of the position - time graph is zero.

Step2: Analyze the graph

Looking at the position - time graph, at point C the slope of the graph is zero (the graph changes direction at this point, and the tangent to the curve at this point is horizontal).

Answer:

C. C