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The upper leg muscle (quadriceps) exerts a force of Fo= 1300 N, which is carried by a tendon over the kneecap (the patella) at the angles shown in the figure below.
55
Fo
75°
Find the magnitude in newtons and direction in degrees counter-clockwise from an axis directed to the left of the force exerted by the kneecap on the upper leg bone (the femur).
magnitude
N
direction
° counter-clockwise from an axis directed to the left

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