Ch. 4 · 第５節 安全運転に必要な知識など
Which statement correctly describes the magnitude of centrifugal force?
[Multiple choice · Medium]
- A.Centrifugal force increases as the radius of a curve becomes larger, and increases in proportion to speed
- B.Centrifugal force increases as the radius of a curve becomes smaller, and increases in proportion to speed
- C.Centrifugal force increases as the radius of a curve becomes smaller, and increases in proportion to the square of the speed✓
- D.Centrifugal force increases as the radius of a curve becomes larger, and increases in proportion to the square of the speed
Answer: C: Centrifugal force increases as the radius of a curve becomes smaller, and increases in proportion to the square of the speed
Explanation
Section "2. Natural Forces Acting on Vehicles (2) Centrifugal Force" states: "The magnitude of centrifugal force increases as the radius of a curve becomes smaller, and increases in proportion to the square of the speed." The key points are the smaller radius and proportionality to the square of the speed.
Source: Ch. 4 · Section (第５節 安全運転に必要な知識など) · ２ 自動車に働く自然の力 (２) 遠心力 - 遠心力の大きさは、カーブの半径が小さいほど大きくなり、速度の２乗に比例して大きくなります。
See the glossary for definitions of key terms.