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The torque caused by a force F applied at a distance r from the axis of rotation, is given byt-rF sin e, whereq is the angle betweenf and. If the magnitudes r and F remain the same, what other angleq¢ will produce the same torque as was produced at angleq ifq was less than 90°? e' - 90° + e e' - 90° - e O e' 180° - e D None of the above.

1. The hip is stabilized, in part, by the gluteus medius muscle. Figure (a) represents a person standing on one leg and shows the hip as an inverted trapezoid, the femur as two line segments representing the neck and shaft, and a single line segment representing the hip muscle (red line). Figure (b) changes the scale in order to see the force components more easily, including a vector for the body's weight (W) and another for the muscle force needed to balance the hip (M). The femur connection with the hip is a ball-and-socket joint and is the location of the pivot in this model. Figure (c) shows the weight and muscle forces translated to a single lever arm where the pivot is the ball-and-socket joint. a) www.timvandevall.com b) M N W Assume all quantities are correct to 2 significant figures. Enter to 2 significant figures M = c) a) When standing on one leg, 5/6 of a person's weight is applied at the body's center of mass, as shown in the diagram. The other 1/6 is the mass of the leg…

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