Points A, B and C have coordinates A (-2,3,-4), B (4,-1,6) and C (2,5,^). (a) If the line joining B to C is perpendicular to the line AB, find the value of 2. (b) A force F=21-53-7k acts through point B. Find its moment about point A.

Points A, B and C have coordinates A (-2,3,-4), B (4,-1,6) and C (2,5,^). (a) If the line joining B to C is perpendicular to the line AB, find the value of 2. (b) A force F=21-53-7k acts through point B. Find its moment about point A.

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

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter6: Beams And Cables

Section: Chapter Questions

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

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Concept explainers

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.

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Points A, B and C have coordinates A (-2,3,-4), B (4,-1,6) and C (2,5,^).
(a) If the line joining B to C is perpendicular to the line AB, find the value of 2.
(b) A force F=21-53-7k acts through point B. Find its moment about point A.

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