A couple M of magnitude 100 N m is applied as shown to the crank of

A couple M of magnitude 100 N ∙ m is applied as shown to the crank of the engine system. Knowing that AB = 50 mm and BC = 200 mm, determine the force P required to maintain the equilibrium of the system when (a) θ = 60°, (b) θ =120°.

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