1. The uniform 12-lb disk pivots freely about a horizontal axis through O. A 4-lb slender bar is fastened to the disk as shown. If the system is nudged from rest when in the position shown, find its angular velocity after it has rotated 180°. 30 30 Your answer should be between 6.5 and 7 rad/s.

1. The uniform 12-lb disk pivots freely about a horizontal axis through O. A 4-lb slender bar is fastened to the disk as shown. If the system is nudged from rest when in the position shown, find its angular velocity after it has rotated 180°. 30 30 Your answer should be between 6.5 and 7 rad/s.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Solve it correctly please. I will rate accordingly
A piston slider crank mechanism is shown beolow. The connecting rod having a length of 1125 mm enables the rotational motion generated by the crank with a diameter of 500 mm to the transnational motion of the piston The crank is turning at 410 rpm At the given instant shown, find the angular velocity of the connecting rod when the angle of the crank is 59* from the horizontal axis. Crank Connecting Rod Piston Cylinder
the crank AB is made to rotate with a constant angular velocity of Q rpm clockwise with no force applied to the face of the piston. (a) determine the velocity of the position P (b) determine the angular velocity and acceleration of the connecting rod BD (c) if the piston mass is m, determine the forces exerted on the connecting rod at B and D (neglect the effect of the weight of the rod)
The uniform 35-lb bar with attached 11-lb wheels is released from rest when = 64°. If the wheels roll without slipping on the horizontal and vertical surfaces, determine the magnitude of the angular velocity of the bar when 9 = 42°. Each wheel has a centroidal radius of gyration of 6.1 inches. A Answer: @= 8" 6.0' B rad/sec
The rotor of a gas turbine is turning at a speed of 5,600 rpm when the turbine is turned off. It is observed that it takes 5 min for the rotor to come to rest. Assuming that the motion is uniformly accelerated, determine the angular acceleration of the rotor.
Only c & d
A drum of radius r, = 4 in. is mounted on a cylinder of radius r, = 6 in. A cord is wound around the drum, and its extremity D is pulled to the left with a constant velocity of 6 in./s, causing the cylinder to roll without sliding. Determine: 1. The angular velocity of the cylinder. 2. The velocity of the center of the cylinder A. riin. 12 in D. Select one: AW-3rad/s; and VA = 12 in/s: O B.w 4 rad/s; and VÀ = 16 in/s. 2 rad/s and VA=6 in/s. OD.W. 5 rad/s and VA = 25 in/s 9:15 PM ) A ENG 77-Apr-2021
A LAB=60cm 45° B Platform C v=10cm/s Disk B (radius=30cm) rolls without sliding relative to Platform C as the platform is moving upwards with a velocity 10cm/s. At the instant shown, determine the following: a. Identify the rigid bodies in the system and the type of motion of each body. b. Determine the magnitude of velocity of the disk's center, VB c. Determine the angular velocity of Disk B, WB d. Determine the angular velocity of member AB, waB
The system is made up of the 1-m, 6.7-kg uniform rod AB and the two uniform disks (each of 0.10 m radius and 2.2 kg mass). If the system is released from rest when 0- 55", when rod AB has just become horizontal, determine the angular velocity of rod ABin rad/s. Assume the disks roll without slipping. Your answer must include 2 places after the decimal point. Please pay attention: the numbers may change since they are randomized. Take g= 9.81 m/s?. 1m
The 4.8-kg rod AB is attached to a collar of negligible mass at A and to a flywheel at B. The flywheel has a mass of 16 kg and a radius of gyration of 180 mm. If the angular velocity of the flywheel is to be the same in the position shown and when point B is directly above C, determine the required value of its angular velocity in the position shown in the figure. 720 mm B 240 mm The required value of angular velocity of the flywheel is rpm (Click to select)
A drum of radius r1 = 3 in. is mounted on a cylinder of radius r2 = 6 in. A cord is wound around the drum, and its extremity D is pulled to the left with a constant velocity of 6 in./s, causing the cylinder to roll without sliding. Determine: 1. The angular velocity of the cylinder. 2. The velocity of the center of the cylinder A. Select one: A. ω=6 rad/s; and VA = 30 in/s. B. ω=4 rad/s; and VA = 16 in/s. C. ω=5 rad/s; and VA = 25 in/s. D. ω=2 rad/s; and VA = 6 in/s.
The circular disk of 145-mm radius has a mass of 38 kg with centroidal radius of gyration k bar = 25 mm and has a concentric circular groove of 55-mm radius cut into it. A steady force Tis applied at an angle theta to a cord wrapped around the groove as shown. If T = 40 N, theta = 0, mu_s = 0.11, and mu_k = 0.09, determine the angular acceleration a of the