2-9) The in M rotationally mounted bar 1 (L1 = AM = 50 mm, ß = 53.13°) rotates with constant angular velocity w₁ = 10 rad/s. Bar 2 (L₂ = BC = 25 mm) is mounted in the floating bearing C and rotates with constant angular velocity w₂ = 40 rad/s. Both bars are connected by rod 3, which is mounted in the swivel joints A and B (L3 = AB = 200 mm). a) Determine the velocities VA, VB and Vc as well as the A angular velocity w3 of rod 3! b) Determine the accelerations aд, aв and ac as well as the angular acceleration α3 of rod 3! W3, α3 B W₂ W1 VC M ас

An electric food processor comes with many attachments forblending and slicing food. Assume the motor maintains thesame angular speed for all the various attachments. The largestattachment has a diameter of 12.0 cm, and the smallest has a diameter of 5.00 cm. Find the ratio of the translational speeds of points on the edges of each attachment.

Rotational Inertia Problems 5 and 6 are paired. 5. N A system consists of four boxes modeled as particles connected by very lightweight, stiff rods (Fig. P13.5). The system rotates around the z axis, which points out of the page. Each particle has a mass of 5.00 kg. The distances from the z axis to each particle are r1 = 32.0 cm, r2 = 16.0 cm, r3 = 17.0 cm, and r4 = 34.0 cm. Find the rotational inertia of the system around the z axis. 6. N Use the information in Problem 5 to find the rotational inertia of the system around particle 1. FIGURE P13.5 Problems 5 and 6.

20-41. At the instant shown, the arm AB is rotating about the fixed pin A with an angular velocity o = 4 rad/s and angular acceleration ở = 3 rad/s. At this same instant, rod BD is rotating relative to rod AB with an angular velocity wz =5 rad/s, which is increasing at w,=7 rad/s. Also, the collar Cis moving along rod BD with a velocity of 3 m/s and an acceleration of 2 m/s', both measured relative to the rod. Determine the velocity and acceleration of the collar at this instant. w = 4 rad/s in = 3 rad/s? 1.5 m 3 m/s 2 m/s2 w, = 5 rad/s iz = 7 rad/s? 0.6 m