1 votes

How to obtain the resultant of the following coplanar forces?

a) Resultant 1 \ - F1 = 10, θ = 45 \ - F2 = 5, θ = 155 \ - F3 = 12, θ = 200 \ - F4 = 15, θ = -20 b) Resultant 2 \ - F1 = 10 , θ = 0 \ - F2 = 8, θ = 90 \ - F3 = 7, θ = 170 \ - F4 = 7, θ = 190 \ - F4 = 8, θ = 230

1voto

Anon User Points 0
This is very simple... you will know that the components of x.and. of the resultant of a system of forces-coplanar are the summation of the components x, y of the forces that these adding. We assume that the angles are in degrees. You are guided only in one case: ( THE OTHER one's do-it-yourself) 1\) F1 = 10 , θ = 45 F1x= 10 cos 45 .......................F1y = 10 sen 45 \- F2 = 5 , θ = 155 F2x = 5 cos 155 .......................F2y= 5 sin 155 \- F3 = 12 , θ = 200 F3x = 12 cos 200 ......................F3y= 12 sen 200 \- F4 = 15, θ = -20 F4 x= 15 cos ( -20) ...................F4y = 15 sin (-20) The resultant vector will have the components Rx= sum of the Fx ........................Ry = sum of the Fy. I would be giving the resultant vector R = 5.34 ...-0.83°.

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