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Q2. A body of mass 100 kg is to be pulled along a horizontal plane, where the coefficient of friction between the contact surfaces has a constant value of 0.4 If a force is applied to the body at an angle of 45^o above the horizontal plane:

(a) sketch the force diagram indicating the interacting forces and the relevant angles. (4)

(b) calculate EACH of the following:

(i) the magnitude of the force that will slide the body at constant speed. (6)

(ii) the magnitude and direction of the minimum force that will move the body. (6)