Answered: (2. The vectors shown below are…

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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Question

Solve the following problem found in the image below. Draw the forces in the following order: 100#, 145#, 200# (all tip-to-tail). Solve for the Resultant using the two different methods listed below. Create a different sketch for each of the methods. The answer for the resultant for both of the following methods must include the magnitude and the direction of the resultant (relative to horizontal - positive x, in a counter-clockwise direction).

1. Method 1: Solve Graphically using an engineer's scale and protractor. Use Scale 1"=100 pounds.

2. Method 2: Solve Mathematically (using the Cosine Law & the Sine Law).

2. The vectors shown below are concurrent about the point shown. Find their resultant us-
ing the polygon method. Find the resultant both graphically and mathematically. ,
200 lb
145 lb
80°
56
100 lb

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