7. Given that ā•b = -6,||||= 4.3 and the angle between a and 5 is 0= determine if bis a unit vector or not. 8. Given p=(5,-2.1) and = (0.4.8) compute projā. 9. Given ā= i +3j-2k and b=-31-4j+7k compute proj; b. 10. Determine the direction cosines and direction angles for 7 = (5.2₁-7).
7. Given that ā•b = -6,||||= 4.3 and the angle between a and 5 is 0= determine if bis a unit vector or not. 8. Given p=(5,-2.1) and = (0.4.8) compute projā. 9. Given ā= i +3j-2k and b=-31-4j+7k compute proj; b. 10. Determine the direction cosines and direction angles for 7 = (5.2₁-7).
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter8: Centroids And Distributed Loads
Section: Chapter Questions
Problem 8.73P
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