a very foggy day, the road visibility is no more than 30m ahead. Given that the coefficients of static and kinetic friction between the tyres and the road surface are 0.9 and 0.8 respectively. (a) If the driver can act immediately when he sees obstacle ahead, i.e. reaction time is zero, find the maximum speed limit. (b) If the driver has reaction time of 0.3 second, what will be the new maximum speed limit?
a very foggy day, the road visibility is no more than 30m ahead. Given that the coefficients of static and kinetic friction between the tyres and the road surface are 0.9 and 0.8 respectively. (a) If the driver can act immediately when he sees obstacle ahead, i.e. reaction time is zero, find the maximum speed limit. (b) If the driver has reaction time of 0.3 second, what will be the new maximum speed limit?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
In a very foggy day, the road visibility is no more than 30m ahead.
Given that the coefficients of static and kinetic friction between the
tyres and the road surface are 0.9 and 0.8 respectively.
(a) If the driver can act immediately when he sees obstacle ahead,
i.e. reaction time is zero, find the maximum speed limit.
(b) If the driver has reaction time of 0.3 second, what will be the
new maximum speed limit?
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