(Answered) While using a pencil sharpener a student applies the forces

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While using a pencil sharpener, a student applies the forces and couple shown.

(a) Determine the forces exerted at B and C knowing that these forces and the couple are equivalent to a force-couple system at A consisting of the force R = (3.9 lb)i + Ry j -(1.1 lb)k and the couple MR/A = Mxi + (1.5 lb ft)j - (1.1 lb ft).k

(b) Find the corresponding values of Ry and Mx.

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