= The rigid assembly which consists of light rods of lengths a = 0.3 m and b = 0.5 m and two 1.2-kg spheres rotates freely about a vertical axis. A couple M 0.2t N.m, where t is time in seconds, is applied to the assembly. Determine the angular velocity of the assembly at t = 10 s if (a) the assembly is initially at rest, and (b) the assembly initially rotates with an angular velocity wo rad/s as shown. Treat the small spheres as particles. (w = 24.5 rad/s, w = 20.5 rad/s) a M b = = 4 m ωο m

345 mm, and an initial angular velocity 2.1 kg, a radius rB = 215 mm, and Disk A has a mass mA = 5.1 kg, a radius rA wOA = 300 rpm clockwise. Disk B has a mass mB is at rest when it comes into contact with disk A. Given that uk = 0.37 between the disks and neglecting rolling friction, determine the acceleration angle of disk A, in rad/ s². @0 B - TB =

The circular concrete culvert rolls with an angular velocity of w = 0.60 rad/s when the man is at the position shown. At this instant the center of gravity of the culvert and the man is located at point G, and the radius of gyration about G is kg = 3.7 ft (Figure 1) Figure 4 ft O 0.5 ft Part A Determine the angular acceleration of the culvert. The combined weight of the culvert and the man is 500 lb Assume that the culvert rolls without slipping, and the man does not move within the culvert. Express your answer to three significant figures and include the appropriate units. α = Submit μÀ Value Provide Feedback X Incorrect; Try Again Units Previous Answers Request Answer ? Units input for part A Next >

The 35 lb slender rod AB is 277 in. long and at rest in a horizontal position supported by a spring located at h = 226 in. from the suspension cable at B.  If the cable at B fails, answer the following  1) Part A: Determine the magnitude of the acceleration of end A. 2) Part B: Determine the magnitude of the acceleration of end B. 3) Part C: Determine the angular acceleration of the rod.

The 1.8-kg uniform bar rotates in the vertical plane about the pin at O.When the bar is in the position shown, its angular velocity is 4 rad/s, clockwise. For this position, find (a) the angular acceleration of the bar; and (b) the magnitude of the pin reaction at O.

The semicircular disk of mass m = 2.3 kg is mounted in the light hoop of radius r= 235 mm and released from rest in position (a). Determine the angular velocity w of the hoop and the normal force N under the hoop as it passes position (b) after rotating through 180°. The hoop rolls without slipping. (a) (b) Answers: w = i rad/s N = i

The circular concrete culvert rolls with an angular velocity of w = 0.5 rad/s when the man is at the position shown in (Figure 1). At this instant the center of gravity of the culvert and the man is located at point G, and the radius of gyration about G is kg = 3.5 ft. Figure 4 ft 0.5 ft 1 of 1 > Part A Determine the angular acceleration of the culvert. The combined weight of the culvert and the man is 500 lb. Assume that the culvert rolls without slipping, and the man does not move within the culvert. Express your answer in radians per second squared to three significant figures. α = IVE | ΑΣΦ | 11 Submit Request Answer < Return to Assignment vec ^ Provide Feedback ? rad/s²

An elongated rod of mass 4-kg has a mass of 2-kg at point A to a block moving vertically, 4-kg at point B pinned to a massive disk. The disc rotates without rolling, It is assumed that the block also moves in a frictionless channel. Please pay. The mechanism is released when stationary at θ=60º. Find the angular velocity of the rod when θ=0º.

The uniform 2-kg slender bar AB is mounted on a vertical shaft at C.A constant couple of 9 N-m is applied to the bar. Calculate the angular acceleration of the bar and the magnitude of the horizontal reaction at C at the instant when the angular velocity of the bar is 6 rad/s.

ANSWER= 3.621790, -9.99745 19 (aB)₂ = (aB)y 0 -12.49 A Two identical uniform slender rods with length 2.2 m and mass 3 kg are pin-connected at A. One of the rods is also pin-connected at its other end to fixed point O. If the system is released from rest in the position shown in the figure, find the initial acceleration of point Bat the end of the rightmost rod. The angle is 21°. For the purposes of reporting the acceleration, consider + to the right and +y upward. 3.8999 B x0% → x 0% m/s² m/s²