Question: In Example 2, is F 1 = 20lb, F 2 = 40lb a solution? Data from Example 2 Are the forces in the following system

In Example 2, is F1 = 20lb, F2 = 40lb  a solution?


Data from Example 2

Are the forces in the following system given by F1 = 18 lb  and F2 =  41lb ?

2F1 + 4F2 = 200

F2 = 2F1

Substituting into the equations, we have

2(18) + 4(41) 200 200 = 200 412(18) 41 = 36


Since one of these equations is not true, F1 = 18lb, F2 = 41lb is not a solution of the system.

2(18) + 4(41) 200 200 = 200 412(18) 41 = 36

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