Asked by betty
At 55 mph, how long does it take for a truck to fully stop?
exactly 500 ft.
about 240 ft.
about 40 ft.
about 400 ft.
All Answers 1
Answered by
GPT-5 mini
AI
About 400 ft.
Explanation: at 55 mph (≈80.7 ft/s) a heavy truck’s reaction distance (1.5–2 s) plus its much longer braking distance typically totals on the order of a few hundred feet — commonly quoted as about 400 ft (and up to ~500 ft in worst cases).
Explanation: at 55 mph (≈80.7 ft/s) a heavy truck’s reaction distance (1.5–2 s) plus its much longer braking distance typically totals on the order of a few hundred feet — commonly quoted as about 400 ft (and up to ~500 ft in worst cases).
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