Question detail
If a runner completes a lap of a track and returns to the starting point, what is their displacement?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Forces and motion
Question
- A. The length of the lap
- B. Zero
- C. The distance travelled
- D. The average speed of the runner
Answer
Zero
Explanation
Displacement is the shortest distance from the starting point to the endpoint. Since the runner returns to the starting point, the displacement is zero.
Common mistake
Misunderstanding the Distance Equation
Students often confuse the equation distance = speed x time, thinking that speed can be added to distance instead of multiplied.
To fix this, students should practice using the equation correctly by substituting values for speed and time, ensuring they multiply these values to find the correct distance.
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