Force-couple systems: A couple is a pair of forces, equal in magnitude, oppositely directed (sum of the two forces is zero), whose lines of action do not coincide. Its effect is to create rotation, or produce a moment on the object. A Given: -6 in.- Find: B • H = 2.50 in • F = 34.0 lbs . Moment = E -------- 6 in. Hin lbs-ft (change units to feet)

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Q: 100 lb 800 lb · ft A |C B 5 ft 5 ft

A:

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Q: 00 Ib, 120° 60°

A:

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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.