Waec Model Questions Vol1 2018 Civic Education Question 39
Practice objective / multiple choice question 39 from the 2018 Waec Model Questions Vol1 Civic Education examination.
A driver travelling at a constant speed must stop at a red light. The total stopping distance consists of a perception‑reaction distance (speed × reaction time) plus a braking distance equal to k × (speed)², where k is a constant. When the speed is 60 km h⁻¹ the total stopping distance is 45 m; when the speed is 90 km h⁻¹ the total stopping distance is 85 m. Determine the driver's perception‑reaction time (in seconds) to one decimal place.
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About This Question
This is Waec Model Questions Vol1 2018 Civic Education Question 39. It is one of the objective questions from the 2018 Waec Model Questions Vol1 Civic Education examination.
Difficulty level: Hard .
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