A car travels from point A to point B in a zigzag path, covering a total distance of 200 meters. If the shortest straight-line distance between A and B is 120 meters, which statement best describes the car’s distance and displacement?
The distance is 200 meters; the displacement is 120 meters
To solve this question, let's clearly understand the terms "distance" and "displacement" in physics:
Given:
From these definitions and the given data, we can deduce:
Therefore, the correct statement describing the car's journey is:
The distance is 200 meters; the displacement is 120 meters.
Let's evaluate the options given:
Why is speed called a scalar quantity?
Which of the following statements correctly describes average velocity and its SI unit?
A car travels on a highway, and its odometer records a reading of 180 km at 8:00 am and 240 km at 9:30 am. Based on this information, which statement best describes the car's average speed during this interval?
A car travels 90 km east and then 30 km west along the same straight road. If the entire journey takes 3 hours, what is the average velocity of the car?
A car travels 60 km north in 2 hours, then 40 km south in the next 1 hour. What is the car’s average velocity over the entire trip?
Which of the following best describes the function of a speedometer in a vehicle?
A cyclist travels 120 km in 3 hours, rests for 1 hour, and then travels another 80 km in 2 hours. To determine the cyclist's average speed for the entire journey, which of the following quantities should be used?
A cyclist rides 60 meters north, then 80 meters south, and finally 70 meters north. What is the total distance the cyclist has traveled?
Which of the following quantities specifies its speed with direction?
The basic unit of speed of an object is ______.