Compute the combined moment of the two 90-lb forces about (a) point O and (b) point A. The moment is positive if counterclockwise, negative if clockwise. Assume a = 5.0 in., b = 3.0 in, F-90 lb. Answers: (a) Mo (b) MA= i lb-in. lb-in.

Compute the combined moment of the two 90-lb forces about (a) point O and (b) point A. The moment is positive if counterclockwise, negative if clockwise. Assume a = 5.0 in., b = 3.0 in, F-90 lb. Answers: (a) Mo (b) MA= i lb-in. lb-in.

International Edition---engineering Mechanics: Statics, 4th Edition

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Chapter6: Beams And Cables

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Problem 6.6P: Find the internal force systems acting on sections 1 and 2.

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Basic Terminology in Mechanics

The area of science and mathematics concerned the motion of the objects, the relation between the force matter, and motion if specified. Forces exerted over the objects result in displacements or changes in the position of an object concerning its environment. This branch of physics keeps its roots in Ancient Greece in the form of the scripts of Aristotle and Archimedes.

Question

Compute the combined moment of the two 90-lb forces about (a) point O and (b) point A. The moment is positive if counterclockwise,
negative if clockwise.
Assume a = 5.0 in., b = 3.0 in, F = 90 lb.
Answers:
(a) Mo
(b) MA= i
lb-in.
lb-in.

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