Quaation Details The upper leg muscle (quadriceps] exerts a force of 1130 N, which is carried by a tendon over the kneecap (the patella) at bone (the femur) the angles shown in Figure 5.43. Find the magnitude and direction of the force exerted by the kneecap on the upper leg N (counter-clockwise from an andis directed to the left) F = 113ON we will use FORIS Fret = 0 VA 75 x - direction 4 y - direction Figure 5,43 Fox, = 1130 cos 55 = 648 N horizontal components Foxz = 1130 cos 75 = 292 N Fret horizontal = 0 Fowl + Fonz = Frensex qHON = FRALLY 5 1130 Fret vertical = 0 ( vertical components) Foyz = Fenway + Fay! 2 1130 940 N So Now put xby together total: 165,9