Determine the smallest static coefficient? - smallest flatbed negative scanner
The airplane car travels at a constant speed of 80kph on a curve radius of 55m and slope 150th Find the lowest coefficient of static friction between the housing and prevent the wagons of the mass M sliding.
Wednesday, February 3, 2010
Smallest Flatbed Negative Scanner Determine The Smallest Static Coefficient?
1 comment:
80 km / h = v = 22.22m / s
r = 55m
θ = 15 ° (I think it is 150 degrees)
The normal component of the balance of the reaction is W
Ncosθ = W = mg .....( 1)
The radial component is equal to the centripetal force.
Nsinθ = mv ^ 2 / r ........( 2)
Therefore tanθ = v ^ 2/gr
Where friction is the frictional force
Microseconds N
Equation (2) is
(Microseconds + sinθ) N = mv ^ 2 / r ......( 3)
From (3) and (1)
(Microseconds + sinθ) / cosθ = v ^ 2/gr
Microseconds 2cosθ = v ^ / GR - sinθ = 0.626
The coefficient of static friction of 0.626 microseconds =
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