5. A force, F = [10,35,80]N is applied over a distance of d = [110,90,140]m. Determine the amount of work done in this situation. [3] 6. Find the torque produced by a cyclist exerting a force of = [70,30,150]/ on the shaft- pedal d = [11,15,12]cm long. torque = Fxd [4] 7. Calculate the area of the parallelogram whose adjacent sides are a = [1,1, -2] and b= [3,3, -1]. [4]