Determine the angular velocity of link BC for the instant indicated. In case (a), the center O of the disk is a fixed pivot, while in case (b), the disk rolls without slipping on the horizontal surface. In both cases, the disk has clockwise angular velocity w=3 rad/sec. Neglect the small distance of pin A from the edge of the disk. 00 (a) (a) omega = rad/sec C 2r A 2r (b) omega = rad/sec B B (b)

The 5-kg collar has a velocity of 5 m/s to the right when it is at A (Figure 3). It then travels down along the smooth guide. Determine the speed of the collar when it reaches point B, which is located just before the end of the curved portion of the rod. The spring has an unstretched length of 100 mm and B is located just before the end of the curved portion of the rod. 200 mm A wwww... 200 mm k = 50 N/m B

The flexible band F is attached at E to the rotating sector and leads over the guide pulley. Determine the angular accelerations of AD and BD for the position shown if the band has a constant velocity of 4 m/s. Use the Relative Motion Analysis method.

The collar has a mass of 3 kg and is attached to the light spring, which has a stiffness of 26 N/m and an unstretched length of 0.8 m. The collar is released from rest at A and slides up the smooth rod under the action of the constant 205-N force.  Calculate the velocity v of the collar as it passes position B. Hint: Answer is NOT 17.89 or 5.824 m/sec

The collar has a mass of 3 kg and is attached to the light spring, which has a stiffness of k N/m and an unstretched length of 0.8 m. The collar is released from rest at A and slides up the smooth rod under the action of the constant N force.  Calculate the velocity v of the collar as it passes position B. (rest of values in image)

The collar has a mass of 3 kg and is attached to the light spring, which has a stiffness of 26 N/m and an unstretched length of 0.8 m. The collar is released from rest at A and slides up the smooth rod under the action of the constant 205-N force.  Calculate the velocity v of the collar as it passes position B. Hint: Answer is NOT 17.89

Problem 3: The portion AOB of the mechanism is actuated by gear D and at the instant shown has a clockwise angular velocity of 8 rad/s and a counterclockwise angular acceleration of 40 rad/s. If the arm OB is welded to the shaft at 0, determine reaction(s) that act upon the arm OB at the point O at the given instant. 120 mm D E mẸ = 4 kg 400 mm %3D kE = 85 mm тов 3 3 kg B

P=124

Determine the deflection at point B for the beam shown by the moment-area method.

8/111 We will see when we study friction in Chapter 6 that a very large force T can be required to raise the 10-kg body when the cable is wound around a fixed rough cylinder as shown. For the static- equilibrium values shown, determine the force and moment reactions at point O. The 0,.3-m di- mension refers to the point A where the cable loses contact with the cylinder. Neglect the weight of the fixed cylinder. Ans. O, = -14 900 N, O, = 24 400 N %3D 8890 N M = - 19 390 N m, My = - 12 120N m x, M, 857 N.m T = 30 kN %3D 30° 20 0.8 m 30 mm 0.3 m 10 kg Problem 3/111