Question

7) Calculate vector ĉ if vector ĉ is equal to the Cross Product of vector ä crossed with vector b, ¿ = axb ā= (4 m) + (-7 m) b = (10 N)X + (-3 N)9 8) A wrench is used to tighten a lug nut on a car, if the force F is applied to the wrench at a distance † from the center of the nut, the radius and force vectors are given as =(0.6 m)2+(-0.419 =(-12 N)X + (- 4 N) What is the magnitude of the torque vector i acting on the wrench and if both the force and radius vector are in the plane of the page, what direction is the torque (out of the page or into the page) i = fx

Answer 1

7. Giver, à = (umi + (-7m 9 Clondaê + (-3N) ĝ to find a = axb 손 A C k 0 -(-70)] u -7 10 -3 0 S8K = 2 Hene, See oli nos 2.0 la = 58(2) Nom Given, ģ' = (0-6m)î + fooy) ĝ foon) û ; F = (-1an ) + +(-4N) we know, Torque (7) = 8 x ² 0.6 -0.4 0 -12 -40 â -2.4 - (38) - 7.2 763(-) 08 Ž = 7:26 7•262) Nong el = 7.2 Nom dig? on into the page (-2)