Ch. 4 · Pre-Drive Conduct

Crashing into a concrete wall at 60 km/h produces roughly the same impact force as falling from a height of about 14 meters (around the 5th floor of a building).

[True / False · Hard]

Answer: ✓ True

Explanation

Section "2. Natural Forces Acting on Vehicles (3) Impact Force" provides this specific example with these exact figures. The speed of 60 km/h, height of 14 meters, and equivalence to the 5th floor all match, so this statement is correct.

Driving school curriculumStage 2 – Topic 5: Human capability and driving

Hikari
Hikari
14 meters sounds way too high for just 60 km/h. That's like the 5th floor!
Misaki
Misaki
It's true, though. Hitting a wall at 60 km/h really does produce the same impact as falling from about 14 meters — roughly a 5th-floor drop.
Hikari
Hikari
Seriously? That's terrifying.
Misaki
Misaki
It is. Speed converts into massive force on impact — never underestimate how deadly even moderate speeds can be.

Source: Ch. 4 Pre-Drive Conduct · 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 (３) 衝撃力 - 時速60キロメートルでコンクリートの壁に激突した場合は、約14メートルの高さ（ビルの５階程度）から落ちた場合と同じ程度の衝撃力を受けます。

🤖 Dig deeper with AI

Send this question's context to ChatGPT for a richer explanation. The prompt also asks the AI to point you back to this chapter's practice quiz.

🚀 Ask ChatGPT

If the button doesn't open ChatGPT, tap Copy and paste it into Claude, Gemini, or any other LLM you prefer. On a free plan, Claude (claude.ai) tends to produce more accurate explanations that respect this site's content.

← Back to all Ch. 4 questions

See the glossary for definitions of key terms.

Source content excerpted from the NPA “Rules of the Road” instructional manual, in the public domain under Japanese Copyright Act Article 13(2). Explanations are AI-assisted and copyrighted by the MenkyoQuest editorial team.