Soru
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
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To find the average velocity, we need to calculate the total displacement divided by the total time taken.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:Velocity = Displacement / TimeVelocity = 15,000 meters / 10 minutesVelocity = 1,500 meters/minuteAfter 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:Velocity = Displacement / TimeVelocity = 0 meters / 5 minutesVelocity = 0 meters/minuteThe 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:Average Velocity = Total Displacement / Total TimeAverage Velocity = 0 meters / 15 minutesAverage Velocity = 0 meters/minuteTherefore, the correct answer is A.