Mathematics · Speed, Time and Distance
Two vehicles are approaching each other from opposite directions at a speed of 25 m/s on a single lane road. Assuming a perception-reaction time of 2.5 s, a coefficient of longitudinal friction as 0.50, a brake efficiency of 50%, and acceleration due to gravity as 10 m/s2, what is the minimum distance required to avoid a head-on collision?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1307.2 m
- 2375.0 m
- 3187.5 m
- 4153.6 m✓
Correct answer
153.6 m
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