P-8: In the design of the robot to insert the small cylindrical part into a close-fitting circular hole, the robot arm must exert a \( 90 \mathrm{~N} \) force \( \boldsymbol{P} \) on the part parallel to the axis of the hole as shown. Determine the components of the force which the part exerts on the robot along axes (a) parallel and perpendicular to the \( \operatorname{arm} A B \), and (b) parallel and perpendicular to the \( \operatorname{arm} B C \).
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