The control rod AC is guided by two pins that slide freely in parallel curved slots of radius 200 mm. The rod has a mass of 10 kg, and its mass center is located at point G. Knowing that for the position shown the vertical component of the velocity of C is 1.25 m/s upward and the vertical component of the acceleration of C is 5 m/s² upward, determine the magnitude of the force P.

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Fig. P16.19 60° 250 mm G 375 mm B 60° 225 mm P C