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If the normal force creates a tension then the force is said to be ____________

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in Engineering Mechanics by (701k points)
If the normal force creates a tension then the force is said to be ____________

(a) Positive

(b) Negative

(c) Rotational

(d) Collinear

This question was posed to me in my homework.

My doubt is from Internal Forces Developed in Structural Members in portion Internal Forces of Engineering Mechanics

1 Answer

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The correct choice is (a) Positive

Easy explanation: If the normal forces are giving tension to the body of the beam then the forces are said to be positive. That is if the normal force is making the tension to develop in the beam then it is considered to be positive. This is the basic sign convection that is being used to make the calculations easy.

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