A rotating shaft is to carry four discs A, B, C and D whose masses are 15 kg, 25 kg, 20 kg and 18 kg respectively; they are to be spaced at intervals of 30 cm, 37.5 cm and 22.5 cm along the shaft. The centers of mass of A, B and C are at 3.6 cm, 1.2 cm and 1.8 cm respectively from their axis of rotation. a) The three discs A, B and C are first attached to the shaft, at the spacings specified above, with their centers of mass in positions which give static balance. Find the relative angular positions of their centers of mass. b) The disc D is then attached to the shaft in such a position as to nullify the out of balance couple, when the reference plane passes through A. Find the eccentricity of the centre of mass of D and its angular position relative to that of A.

A rotating shaft is to carry four discs A, B, C and D whose masses are 15 kg, 25 kg, 20 kg and 18 kg respectively; they are to be spaced at intervals of 30 cm, 37.5 cm and 22.5 cm along the shaft. The centers of mass of A, B and C are at 3.6 cm, 1.2 cm and 1.8 cm respectively from their axis of rotation. a) The three discs A, B and C are first attached to the shaft, at the spacings specified above, with their centers of mass in positions which give static balance. Find the relative angular positions of their centers of mass. b) The disc D is then attached to the shaft in such a position as to nullify the out of balance couple, when the reference plane passes through A. Find the eccentricity of the centre of mass of D and its angular position relative to that of A.

Name: Problem No. 6A rotating shaft is to carry four discs A, B, C and D wh
Uploaded: 2024-03-20T06:56:55.000Z
Channel: Bartleby
Description: Problem No. 6A rotating shaft is to carry four discs A, B, C and D whose masses are 15 kg, 25 kg, 20 kg and 18kg respectively; they are to be spaced at intervals of 30 cm, 37.5 cm and 22.5 cm along the shaft.The centers of mass of A, B and C are at

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

In a reciprocating engine, the unbalanced couple is produced by force acting on sides of cylinder walls and O a. vertical component of force acting on crankshaft bearing O b. inertia force O c. accelerating force o d. horizontal component of force acting on crankshaft bearing
Please help
Two smooth cylinders, A (weighing 80 N. and having a diameter of 16 m.) and B (weighing 60 N and having a diameter of 10 m.) are placed in a box as shown in Fig.1. Draw the free-body diagram for cylinder A and cylinder B separately and together. 8 m 12m 5m 十 5mm Fig. 1.
A cross-sectional area of a machine element is shown below. Determine the volume of the solid generated by revolving the area about vertical axis 360°. 80 cm Revolving axis 30 cm 40 cm 100 cm 30 cm 80 cm 100 cm
What is the X-component of the CM of the sculpture ?
Find the gravitational attraction between the two sphere bearings 30 meters apart from each other’s surfaces. Sphere A has a mass of 48000-grams and Sphere B with 78000-grams. The sphere bearings’ diameters are 8500cm and 4800cm, respectively.
What is the mass supported as shown, when the torque created by an axis at position A is 1800 mN?
a m2 m2 b m1 a 10 mm The above-shown cross-section is symmetric about Y-axis. For a = 8 mm, b = 4 mm, the mass m1 60 kg/m?, and the mass m2 = 80 kg/m2. You are required to: %3D A) Determine the coordinates of the centroids of each element (ABF, BCEF, CDE) in the above cross-section B) Determine the location of the centroid for the shown cross-section C) Calculate the mass of each element in the above cross-section D) Determine the location of the center of mass for the shown cross-section
What is centre of Mass? Prove that centre of mass of a solid object does not necessary lie within the object.
Amobile phone has a small motor with an eccentric mass used for vibrator mode. The location of the eccentric mass on motor with respect to center of gravity (CG) of the mobile and the rest of the dimension of the mobile phone are shown. The mobile is kept on a flat horizontal surface. CG Motor 10 cm Eccentric Mass 6 cm 3 cm Given in addition that the eccentric mass = 2 grams, eccentricity 2.19 mm, mass of the mobile = 90 grams, g= 9.81 m/s?. Uniform speed of the motor in RPM for which the mobile will get just lifted off the ground at the end Q is approximately
Change of Ttork required by a machine for rotational movement with rotation angle T(0)=5000[1+5cos(30)-6sin (30)] (Nm ) is given as. The rotation speed of the machine is below 711 r/min mass moment of inertia required to allow it to move without landing and without leaving above 729 rpm find its value. Please select one: 2 A.241,473 kg-m B.119,592 kg-m2 2. C.183,181 kg-m D.221,264 kg-m 2. E.165,845 kg m 2. F.262,223 kg * m G.126,304 kg m H.150,179 kg-m 2 1,201, 759 kg-m J.136,759 kg-m
1) the resultant hydrostatic force, the line of action is on a centroid of surface area b center of pressure c randomly, can not be determined 2) To calculate the location of pressure center, area moment of inertia of the submerged surface should be known. True or False