12.34: A mass m attached to a
y(5uejkbd wc( p0ml q2p309pwlight string of length L is located at an angle θ below the h
3c p m2q 0p(ebdwwlkyp50ju(9orizontal as shown in the figure to the right. The mass then is released from rest. Calculated from an axis perpendicular to the plane of the page through the pivot, which one of the following choices represents the magnitude of the torque produced by the gravitational force acting on the mass at this instant?