This preview shows pages 1–3. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: Problem 3. A slender 6-kg rod can rotate in a vertical plane about a pivot at B. A spring of constant k=600 N/m and an unstretched length of 225 mm is attached to the rod as shown. Knowing that the rod is released from rest in the position shown, determine its angular velocity after it has rotated through 90°. Problem 4. A half-cylinder of mass m and radius r is released from rest in the position shown. Knowing that the half-cylinder rolls without sliding, determine: a) its angular velocity after it has rolled through 90°. b) the reaction at the horizontal surface at the same instant [Hint: Note that GO = 4 r /3 π and that, by the parallel-axis theorem, Ī = ½ mr 2 – m (GO) 2 .] Problem 5. The motion of the uniform slender 2.4-kg rod AB is guided at A and C by collars of negligible mass. The system is released from rest in the position θ =30°. Knowing that the magnitude of the force P applied to collar A is 10 N, determine the angular velocity of rod AB when θ = 45°....
View Full Document
This note was uploaded on 04/23/2008 for the course BENG 109 taught by Professor Ping during the Winter '06 term at UCSD.
- Winter '06