Physicsmedium · Past Paper
A athlete completes one round of a circular track of diameter 200m in 40s. What will be the distance covered at the end of 2 minutes 20s?
A2200 m
B4400 m
C200 m
D628 m
✓ Correct Answer: A — 2200 m
Total time = 140s. Rounds = 140/40 = 3.5. Distance = 3.5 * π * 200 = 3.5 * 3.14 * 200 ≈ 2200m.
Share this question
More from Physics
- A body is dropped from a height H. The time taken to cover the second half of the height is:
- Which of these devices converts mechanical energy into electrical energy?
- A spring is compressed by 0.1 m. If the spring constant is 100 N/m, the energy stored is:
- The Lenz's law is a consequence of the law of conservation of:
- Two copper wires A and B have lengths in ratio 1:2 and radii in ratio 2:1. The ratio of their resistances is: