Answer:
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Answer:
The axial force is
Explanation:
From the question we are told that
The diameter of the shaft steel is
The length of the cylindrical bushing
The outer diameter of the cylindrical bushing is
The diametral interference is
The coefficient of friction is
The Young modulus of steel is
The diametral interference is mathematically represented as
Where is the pressure (stress) on the two object held together
So making the subject
Substituting values
Now he axial force required is
Where A is the area which is mathematically evaluated as
So
Substituting values
The response is False, both bars, iron bars and plastic
bars have de same inertia, this characteristic does not depend on the type of
material, the inertia depends on his transverse section, since we can estimate
in the following formula
<span>Area moment of inertia Ixx = BH3/12</span>
<span>Area moment of inertia Iyy= HB3/12</span>
<h2>
Spring constant is 14.72 N/m</h2>
Explanation:
We have for a spring
Force = Spring constant x Elongation
F = kx
Here force is weight of mass
F = W = mg = 0.54 x 9.81 = 5.3 N
Elongation, x = 36 cm = 0.36 m
Substituting
F = kx
5.3 = k x 0.36
k = 14.72 N/m
Spring constant is 14.72 N/m