A disk of mass 4kg is mounted on a massless rigid rod BC as shown in the diagram. A torque t = is applied to the arm at C. 5e0.5t 0.25m 0.5m Consider three cases: Case-I: The disk is free to rotate about its bearing at B. Case-II: The disk is rigidly attached to its bearing at B. 289 (A) In case-I, the kinetic energy of disk at t = 2 sec is 2 Case-III: The disk is freely rotating about its bearing at B with angular velocity (-10k) rad/sec prior to application of torque. Take : e = 2.7 -J. Z 1156 (B) In case-II, the kinetic energy of disk at t = 2 sec is 9 339 (C) In case-III, the kinetic energy of disk at t = 2 sec is 2 6281 (D) In case-III, the kinetic energy of disk at t = 2 sec is 16 -J. 0.5t T = (5e)N.m C -J.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A disk of mass 4kg is mounted on a massless rigid rod BC as shown in the diagram. A torque t = .
is applied to the arm at C.
5e
A
0.25m
B
0.5m
Consider three cases:
Case-I: The disk is free to rotate about its bearing at B.
Case-II: The disk is rigidly attached to its bearing at B.
289
(A) In case-I, the kinetic energy of disk at t = 2 sec is
2
1156
(B) In case-II, the kinetic energy of disk at t = 2 sec is
9
339
(C) In case-III, the kinetic energy of disk at t = 2 sec is
2
6281
(D) In case-III, the kinetic energy of disk at t = 2 sec is
16
Z
-J.
Case-III: The disk is freely rotating about its bearing at B with angular velocity (-10k) rad/sec prior to
application of torque. Take : e = 2.7
-J.
-J.
0.5t
t = (5e⁰.5t) N.m
C
J.
Transcribed Image Text:A disk of mass 4kg is mounted on a massless rigid rod BC as shown in the diagram. A torque t = . is applied to the arm at C. 5e A 0.25m B 0.5m Consider three cases: Case-I: The disk is free to rotate about its bearing at B. Case-II: The disk is rigidly attached to its bearing at B. 289 (A) In case-I, the kinetic energy of disk at t = 2 sec is 2 1156 (B) In case-II, the kinetic energy of disk at t = 2 sec is 9 339 (C) In case-III, the kinetic energy of disk at t = 2 sec is 2 6281 (D) In case-III, the kinetic energy of disk at t = 2 sec is 16 Z -J. Case-III: The disk is freely rotating about its bearing at B with angular velocity (-10k) rad/sec prior to application of torque. Take : e = 2.7 -J. -J. 0.5t t = (5e⁰.5t) N.m C J.
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