Select the correct answer. A car travels 15 kilometers west in 10 minutes. After reaching the destination, the car travels back to the starting point, again taking 5 minutes. What is the average velocity of the car? A. 0meters/second B. 1.0meters/second C. 1.5meters/second D. 2.0meters/second

To find the average velocity, we need to calculate the total displacement divided by the total time taken.<br /><br />The car travels 15 kilometers west, which is equivalent to 15,000 meters. It takes 10 minutes to reach the destination, so the velocity during this part of the trip is:<br /><br />Velocity = Displacement / Time<br />Velocity = 15,000 meters / 10 minutes<br />Velocity = 1,500 meters/minute<br /><br />After reaching the destination, the car travels back to the starting point, again taking 5 minutes. Since the car is returning to the starting point, the displacement for this part of the trip is 0 meters. Therefore, the velocity during this part of the trip is:<br /><br />Velocity = Displacement / Time<br />Velocity = 0 meters / 5 minutes<br />Velocity = 0 meters/minute<br /><br />The total displacement for the entire trip is 0 meters (since the car returns to the starting point), and the total time taken is 10 minutes + 5 minutes = 15 minutes. Therefore, the average velocity for the entire trip is:<br /><br />Average Velocity = Total Displacement / Total Time<br />Average Velocity = 0 meters / 15 minutes<br />Average Velocity = 0 meters/minute<br /><br />Therefore, the correct answer is A. $0meters/second$.