Question

Three values of this physical quantity are divided by the sines of angles in Lami’s (“lah-MEE’s”) theorem. This quantity appears in a cross product and is decomposed in Varignon’s (“var-ee-NYON’s”) theorem. Orthogonal displacement of two opposite-valued instances of this quantity yields a namesake “couple.” A linear combination of three forms of this quantity is dotted with virtual displacement in d’Alembert’s (“dah-lum-BEAR’s”) principle. Orthogonal components of this quantity are summed in its (*) “Lorentz” form in electromagnetic fields. Equilibrium is reestablished by a “restoring” (10[2])form (10[3])of this (10[1])quantity. (10[11])This (10[1])quantity’s (10[3])moment is torque, (10[1])which equals its product (10[1])with the lever arm. For 10 points, name this quantity represented by arrows in free body diagrams. (10[1])■END■ (10[11])

Back to tossups

Buzzes

Summary