Displacement of a steel rod - don't know how to begin

In summary, the A-36 steel rod with a cross-sectional area of 50 mm^2 is under loading. To determine the displacement of point C, you must consider each force separately and use the displacement formula. Neglect the size of the couplings at points B, C, and D. Also, note that under the 9 N force, point C does not experience any displacement.
  • #1
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The A-36 steel rod is subjected to the loading shown.

If the cross-sectional area of the rod is 50 mm^2, determine the displacement of C.
Neglect the size of the couplings at B, C, and D.

Please help, I don't have any idea how to begin. I can't seem to sum the forces right.

384e800e-85f9-4730-b017-2eb07a0468a5.jpe
 
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  • #2
It is best to look at each force separately, find the displacement at C under each force, and then add up the results. You have to know the modulus of elasticity of the steel, and the displacemnt formula. Note that under the 9 N force, point C just goes along for the 'ride'.
 

What is displacement of a steel rod?

Displacement of a steel rod is the change in position of the rod from its original location to a new location. It is the length of the path between the starting point and the ending point of the rod.

Why is it important to measure displacement of a steel rod?

Measuring displacement allows us to determine the distance the rod has moved and in what direction. This information is crucial for understanding the movement and behavior of objects, as well as for calculating other physical properties such as velocity and acceleration.

How is displacement of a steel rod calculated?

Displacement of a steel rod is calculated by subtracting the final position from the initial position. This can be represented by the equation: displacement = final position - initial position.

What are some common methods for measuring displacement of a steel rod?

Some common methods for measuring displacement of a steel rod include using a ruler or measuring tape to physically measure the distance traveled, using a displacement sensor or encoder to measure the change in position electronically, or using mathematical equations and data analysis to calculate displacement based on other known factors such as time and velocity.

How does displacement differ from distance?

Displacement and distance are often used interchangeably, but they have different meanings in physics. Distance refers to the total length of the path traveled by an object, while displacement refers to the shortest distance between the starting and ending points. This means that displacement can be a negative value if the object moves in the opposite direction of its initial position, while distance is always a positive value.

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