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What is Structural mechanics? ii. Distinguish between Statics and Dynamics, clearly stating what laws form the basis of these concepts. iii. Using graphical method, add the following forces and show the magnitude and direction of the resultant force. Compare the resultant with the analytical method. a) 6N 90° to the positive y-axis b) 7N 40° from the x-axis, c) 816grams, d) 4N at 30° North of West. e) 5N at 20° from the negative y-axis.

What is Structural mechanics? ii. Distinguish between Statics and Dynamics, clearly stating what laws form the basis of these concepts. iii. Using graphical method, add the following forces and show the magnitude and direction of the resultant force. Compare the resultant with the analytical method. a) 6N 90° to the positive y-axis b) 7N 40° from the x-axis, c) 816grams, d) 4N at 30° North of West. e) 5N at 20° from the negative y-axis.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Questionl i. What is Structural mechanics? ii. Distinguish between Statics and Dynamics, clearly stating what laws form the basis of these concepts. iii. Using graphical method, add the following forces and show the magnitude and direction of the resultant force. Compare the resultant with the analytical method. a) 6N 90° to the positive y-axis b) 7N 40° from the x-axis, c) 816grams, d) 4N at 30° North of West. e) 5N at 20° from the negative y-axis. Question 2 Explain the following, use relevant sketches, diagrams and examples i. resultant force ii. parallelogram law of forces. iii.. Collinear forces iv. Coplaner forces v. Concurrent forces vi. Lami's theorem vii. Unit Vector viii. position vector. xi. Free Body Diagram x. Reactions at different support Question 3 i. With the aid of a diagram derive a mathematical expression for the magnitude and direction of the resultant force R, of two forces which can be represented by sides of a parallelogram. ii. Derive Lami's Theorem with the aid of a sketch. iii. With the aid of a diagram, derive expressions for components of forces in the x, y and z direction Question 4 i. If Fl with a magnitude of 150N is 17° from the x axis and F2 with magnitude of 200N is 12º from the y axis, calculate the magnitude and direction of the resultant force (direction should be in reference to the x- axis)
Transcribed Image Text:Questionl i. What is Structural mechanics? ii. Distinguish between Statics and Dynamics, clearly stating what laws form the basis of these concepts. iii. Using graphical method, add the following forces and show the magnitude and direction of the resultant force. Compare the resultant with the analytical method. a) 6N 90° to the positive y-axis b) 7N 40° from the x-axis, c) 816grams, d) 4N at 30° North of West. e) 5N at 20° from the negative y-axis. Question 2 Explain the following, use relevant sketches, diagrams and examples i. resultant force ii. parallelogram law of forces. iii.. Collinear forces iv. Coplaner forces v. Concurrent forces vi. Lami's theorem vii. Unit Vector viii. position vector. xi. Free Body Diagram x. Reactions at different support Question 3 i. With the aid of a diagram derive a mathematical expression for the magnitude and direction of the resultant force R, of two forces which can be represented by sides of a parallelogram. ii. Derive Lami's Theorem with the aid of a sketch. iii. With the aid of a diagram, derive expressions for components of forces in the x, y and z direction Question 4 i. If Fl with a magnitude of 150N is 17° from the x axis and F2 with magnitude of 200N is 12º from the y axis, calculate the magnitude and direction of the resultant force (direction should be in reference to the x- axis)
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