Gce Model Questions Vol1 2020 Civic Education Question 15
Practice objective / multiple choice question 15 from the 2020 Gce Model Questions Vol1 Civic Education examination.
A driver travelling at speed \(v\) must keep a safe following distance \(d\) behind a vehicle that may brake suddenly. The safety formula is \(d = v\,t_{r} + \dfrac{v^{2}}{2a}\), where \(t_{r}\) is the driver's reaction time (seconds) and \(a\) is the deceleration rate (m/s\(^2\)) of the following vehicle. In the city the speed limit is \(50\) km/h, typical reaction time is \(1.5\) s, and the maximum comfortable deceleration is \(3\) m/s\(^2\). On wet roads deceleration is reduced by 20%. Compute the minimum safe following distance in metres, rounding up to the nearest whole metre.
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About This Question
This is Gce Model Questions Vol1 2020 Civic Education Question 15. It is one of the objective questions from the 2020 Gce Model Questions Vol1 Civic Education examination.
Difficulty level: Hard .
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