Question

select the correct answer.
you travel in a circle, whose circumference is 8 kilometers, at an average speed of 8 kilometers/hour. if you stop at the same point you started from, what is your average velocity?
a. 0 kilometers/hour
b. 2 kilometers/hour
c. 4 kilometers/hour
d. 8 kilometers/hour
e. 10 kilometers/hour

Explanation:

Step1: Define average velocity

Average velocity is $\frac{\text{Displacement}}{\text{Total Time}}$, where displacement is the straight-line distance from start to end point.

Step2: Identify displacement

Since you end at the starting point, displacement = $0$ km.

Step3: Calculate average velocity

Substitute displacement into the formula: $\text{Average Velocity} = \frac{0}{\text{Total Time}} = 0$ km/hour.

Answer:

A. 0 kilometers/hour