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Q2. A steel wedge is 450 mm long, 55 mm thick at the butt end, 5 mm thick at the sharp end with an equal taper on both sides. It is driven horizontally between an engine bedplate and the stools with a force of 4.5 kN, shown in Fig Q2. The coefficient of friction is 0.15. Calculate EACH of the following:

(a) the equivalent mass lifted by the wedge; (10)

(b) the force required to remove the wedge. (6)