Question

question 1 1 pts the average acceleration is the ratio of which of the following quantities? question 2 1 pts motion of ball moving on ramp the graph above describes the motion of a ball. at what point is the speed of the ball equal to its speed at b?

Explanation:

Step1: Recall acceleration formula

Average acceleration $a_{avg}=\frac{\Delta v}{\Delta t}$, where $\Delta v$ is the change in velocity and $\Delta t$ is the change in time.

Step2: Analyze speed - time graph for Question 2

Speed is the magnitude of velocity. On a position - time graph, the slope represents velocity. Points with the same slope magnitude have the same speed. At point A and B, the magnitudes of the slopes of the graph are the same.

Answer:

Question 1: $\frac{\Delta v}{\Delta t}$
Question 2: A. A