題組內容

1.(30%) In Fig. 1, link 2 rotates about a fixed axis O2. The link rotates at a speed (ω2) 5 rad/sec clockwise with an angular acceleration (a2) 200 rad/sec2counter-clockwise. The link has a weight 5 kg and mass moment of inertia about the center of gravity61273df8443c4.jpg 0.0212kg•m2.

(d) (8%) Continue (c), what is the reaction force on link 2 at O2?
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