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Three forces F1, F2 and F3 are exerted on a metal rod in different directions. F1 = 2i -5j + 4k, F2 = 7i + 2k and F3 = 3i +2j. 1) Find the angle between F, and F2 2) The displacement D created by F3 is D =- 6j- 3k. How much work is done (work =scalar product, F-D.) by the force F3?

Three forces F1, F2 and F3 are exerted on a metal rod in different directions. F1 = 2i -5j + 4k, F2 = 7i + 2k and F3 = 3i +2j. 1) Find the angle between F, and F2 2) The displacement D created by F3 is D =- 6j- 3k. How much work is done (work =scalar product, F-D.) by the force F3?

Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Three forces F1, F2 and F3 are exerted on a metal rod in different directions. F1 = 2i -5j + 4k, F2 = 7i + 2k and F3 = 3i +2j. 1) Find the angle between F, and F, 2) The displacement D created by F3 is D =- 6j - 3k. How much work is done (work =scalar product, F•D.) by the force F3?
Transcribed Image Text:Three forces F1, F2 and F3 are exerted on a metal rod in different directions. F1 = 2i -5j + 4k, F2 = 7i + 2k and F3 = 3i +2j. 1) Find the angle between F, and F, 2) The displacement D created by F3 is D =- 6j - 3k. How much work is done (work =scalar product, F•D.) by the force F3?
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