will vote lifesaver thak you!!!! Suppose there are three balanced forces F1, F2,

Question

will vote lifesaver thak you!!!!

Suppose there are three balanced forces F1, F2,. and F3 as shown in Figure 1 Angles theta are from the axis to the right. Angles phi are angles between the force vectors. Write down the equation representing the equilibrium condition for forces in each direction. Be sure that you choose a coordinate system to find the force components. Write your equation in terms of the magnitudes. F1, F2, F3, F4, and either the angles theta or the angles phi. (You will want to have this equation available as you do the lab).

Explanation / Answer

Lets assume the x axis along F2

Then direction of F2, to be inequilibrium

F2 = F3 cos(180-1) + F1 cos(180-3)

=> F2 + F3 cos1 + F1 cos3 = 0

also in direction perpendicular to F2 we will not have any component of F2

thus, as body is in equilibrium net force is zero

F3 sin(180-1) = F1 sin(180-2)

=> F3 sin1 = F1 sin2

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