22-23. The 20-kg disk, is pinned at its mass center O andsupports the 4-kg block A. If the belt which passes over thedisk is not allowed to slip at its contacting surface, determinethe natural period of vibration of the system.300 mmk = 200 N/m

Answered: Image /qna-images/answer/36d0a487-391c-4195-b420-87684bfe963d.jpg

Answered: 22-23. The 20-kg disk, is pinned at its…

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

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A 3.7kg body is suspended from a spring of constant k = 6.1kN/m. At time t = 0, it has a downward velocity of 0.5m/s as it passes through the point of static equilibrium. Determine the system period, t. k 771 Answer: Next page ous page Type here to search
1. A mass weighing 32 lb stretches a spring by 2 ft. The mass is released from rest at the equilibrium position, determine the equation of motion ?(?) if a force ?(?) = 32 ? acts on the system for 0 ≤ t < 7 and then is removed. Neglect any damping forces.
The springs BA and BC each have the same stiffness k and unstretched length of 3 m. Determine the displacement d of the cord from the wall when a force of F is applied to the cords. F=229 N k=445 N/m F B k 6 m
The car has a mass of 1290 kg and a body frequency of 1.8 Hz. Using a quarter-car model, determine the damping factor for a single shock absorber so that the relative damping factor for the suspension is 0.65? Give the answer in kg / s rounded to the nearest whole number.
3 m 1 m 1 m Determine the natural period of vibration of the pendulum if it is given a small displacement and released. Consider the two rods to be slender, each having a weight of 120 N/m.
22–30. Determine the differential equation of motion of the 3-kg block when it is displaced slightly and released. The surface is smooth and the springs are originally unstretched. k = 500 N/m k= 500 N/m 3 kg WW
Determine the equivalent spring stiffness of the system using the displacement of the block as the generalized coordinate E = 200 x 10" N/m2 I = 1.6 x 10°m* 6 x 10 N/m 3 m- 2 x 10° N/m m 3 x 10' N/m 5 x 10° N/m
B9
H8
Which one is correct please?
A spring has a spring constant of k=18N/m, hung with a weight of mass m=½ kg. If the load is in an equilibrium position, then it is pulled and released with a speed of 3 m/s, then determine the equation of motion of the object if it does not experience friction or damping.
17-110. The 15-lb disk rests on the 5-lb plate. A cord is wrapped around the periphery of the disk and attached to the wall at B. If a torque M = 40 lb - ft is applied to the disk, determine the angular acceleration of the disk and the time needed for the end C of the plate to travel 3 ft and strike the wall. Assume the disk does not slip on the plate and the plate rests on the surface at D having a coefficient of kinetic friction of 4, = 0.2. Neglect the mass of the cord. M = 40 lb · ft -3 ft-

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22-23. The 20-kg disk, is pinned at its mass center O and supports the 4-kg block A. If the belt which passes over the disk is not allowed to slip at its contacting surface, determine the natural period of vibration of the system. 300 mm k = 200 N/m