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Co-efficient of sliding friction for steel is

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+1 vote
in Machine Kinematics by (38.0k points)
Co-efficient of sliding friction for steel is

(a) 0.030

(b) 0.70

(c) 0.18

(d) 0.004

I have been asked this question in semester exam.

My doubt stems from Types of Friction topic in division Friction of Machine Kinematics

1 Answer

0 votes
by (106k points)
Correct option is (c) 0.18

To explain: Co-efficient of sliding friction for steel is 0.18. When railway wheels made of steel rolls on rails made of steel, the co-eficient of rolling friction becomes 0.004.

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