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A simplified diagram of the knee is shown. Consider that both the quadriceps (pulling upward and to the right) and the patellar tendon (pulling
A simplified diagram of the knee is shown. Consider that both the quadriceps (pulling upward and to the right) and the patellar tendon (pulling straight downward in the -y direction) are under a force of tension = 900 N. The indicated angle = 110. As this system is in static equilibrium, we're looking for a force from the femoral condyle which produces a resultant of 0 within the system in all available directions. Find this force and the angle that it makes with the positive x- axis, as shown. (note: check the diagram, this should be >90!) [Hint: start by separating the forces into components, and consider that each individually must add to zero per the conditions above. Be sure to consider directionality!] Quadriceps Patellar tendon F= ?
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