Force F = (10.0 N) ihat + (-5.0 N) khat acts on the pebble having position vector r = (1.10 m) jhat + (-1.2 m) khat, relative to the origin.
(i) Determine the resultant torque acting on the pebble regarding the origin?
(ii) Determine the resultant torque acting on the pebble regarding a point with coordinates (-8.0 m, 2.0 m, -8.0 m)?