The figure below shows forces acting at various points on a metal rod. The angles = 40°, = 27°, = 25°. The length ℓ = 4.6 m. Find the net torque (in N · m) on the rod about the following axes. A horizontal rod of length ℓ lies along a horizontal dashed line. A vertical dashed line extends upwards from the center point C of the rod. A point O is labeled at the left end of the rod. Three outward pointing force vectors act on different parts of the rod. A 30 N force extends down and left from the left end of the rod. The force makes an acute angle with the horizontal dashed line. A 25 N force extends up and right from the center point C of the rod. The force makes an acute angle with the vertical dashed line. A 10 N force extends down and right from the left end of the rod. The force makes an acute angle with the horizontal dashed line. (a) an axis through O perpendicular to the page magnitude N · m direction ---Select--- (b) an axis through C perpendicular to the page magnitude N · m direction ---Select---