A circular-shaped object of mass 11 kg has an inner radius of 8 cm and an outer radius of 30 cm. three forces (acting perpendicular to the axis of rotation) of magnitudes 13 n, 26 n, and 15 n act on the object, as shown. the force of magnitude 26 n acts 33� below the horizontal.
a) 13.2 kg m^2/s^2
b) 18.6 kg m^2/s^2
c) 23.8 kg m^2/s^2
d) 29.1 kg m^2/s^2