Solve 4 problems for engineering Dynamics class

Question Description

I will give you everything with figures in word document.

1-Determine the angular velocity and angular acceleration of link AB if link CD has the angular velocity and angular acceleration shown.

2-The slender 10-kg bar has a clockwise angular velocity of ω = 3 rad/s when it is in the position shown. Determine its angular acceleration and the normal reactions of the smooth surface A and B at this instant.

3-The 15 -kg slender rod is attached to a spring, which has an unstretched length of 3m. If the rod is released from rest when θ = 45°, determine its angular velocity at the instant θ = 60°.

4-The 200 -lb spool is resting on the inclined surface for which the coefficient of kinetic friction is µk = 0.3. Determine the angular velocity of the spool when t = 12 s, the spool is given angular velocity of (ω1=63.64 rad/s clockwise direction ) at (t1 = 6 s). The radius of gyration about the mass center is kG = 0.75 ft.

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