A runner completes a 400 m lap in 50 seconds. What is the average velocity of th
Practice Questions
Q1
A runner completes a 400 m lap in 50 seconds. What is the average velocity of the runner?
8 m/s
6 m/s
4 m/s
2 m/s
Questions & Step-by-Step Solutions
A runner completes a 400 m lap in 50 seconds. What is the average velocity of the runner?
Correct Answer: 0 m/s
Step 1: Understand that average velocity is calculated using the formula: average velocity = total displacement / total time.
Step 2: Identify the total displacement. Since the runner completes a lap and returns to the starting point, the total displacement is 0 meters.
Step 3: Identify the total time taken by the runner, which is given as 50 seconds.
Step 4: Plug the values into the formula: average velocity = 0 meters / 50 seconds.
Step 5: Calculate the average velocity, which equals 0 m/s.
Average Velocity – Average velocity is defined as the total displacement divided by the total time taken. Displacement considers the initial and final positions of the object.
Displacement vs Distance – Displacement is the shortest distance from the initial to the final position, while distance is the total path traveled.
