2. If P (l,4,-2), Q (3,5,2), and R (-3,2,l) are vectors of the parallelogram PQRS a. Determine the coordinates of point S (x,y,z) b. Determine angle Q . 3. A force of 45 N is applied clockwise to the handle of a wrench at 70 degrees to the handle, 17 cm from the centre of the bolt. Determine the magnitude of the torque. Draw a clear diagram of the