the relevant formulas. If there are no roots, mathematically show the reason why there are noroots. 2. There are 3 forces of F1, F2 & F3 applied to the beam. It is desired to find reactions forces FL &FR. The input to an EXCEL spread sheet should be the following: F1//F2///F3/a/b/c/L The output will be FL & FR. The problems must be solved by manual techniques (pencil, paper and calculator). The solution must besent as a PDF file. The problem must also be solved by EXCEL spread sheet and the EXCEL files must be sent as a part of theexam. The input values are: a=3; b=5; c= 8, L = 10 F1 = 13; F2 = 26; F3 = 6 3. Show graphically and by hand calculation the angle that a block will move on an inclined surfacefor the following coefficients of friction: μ- 0.2μ- 0.5μ- 0.6μ- 0.55
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