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UPSC Civil Service Exam Questions - Engineering

Q1:

Consider the following factors :
1. Reaction time
2. Speed
3. Coefficient of longitudinal friction
4. Gradient
Which of these factors are taken into account for computing braking distance ?

A 1 and 3

B 1, 2 and 4

C 2, 3 and 4

D 2 and 3

ANS:C - 2, 3 and 4

Braking distance = V ^2/2gfn.