2009 · Q99
Moving half the circumference, the ratio of average speed to average velocity is:
general-sciencephysics-light-electricity
- A0.5
- B1.57
- C0.757
- D1.0
Explanation
Distance=πr, displacement=2r; speed/velocity ratio=π/2≈1.57.
Moving half the circumference, the ratio of average speed to average velocity is:
Explanation
Distance=πr, displacement=2r; speed/velocity ratio=π/2≈1.57.