5. The mass moment of inertia of anybody about its center of mass is always.... (c) zero (d) None of the above (a) maximum (b) minimum C. Angular momentum cannot be conserved if (a) the angular acceleration changes. (b) the angular velocity changes. (c) there is a net force on the system. D. The total mechanical energy of a system (a) is equally divided between kinetic energy and potential energy. (b) is either all kinetic energy or all potential energy, at any one instant. (c) can never be negative. (d) the moment of inertia changes. (e) the net torque is not zero. (f) None of the above (d) (e) (f) is constant, if only conservative forces act. is not uniquely determined for most naturally occurring systems. None of the above

5. The mass moment of inertia of anybody about its center of mass is always.... (c) zero (d) None of the above (a) maximum (b) minimum C. Angular momentum cannot be conserved if (a) the angular acceleration changes. (b) the angular velocity changes. (c) there is a net force on the system. D. The total mechanical energy of a system (a) is equally divided between kinetic energy and potential energy. (b) is either all kinetic energy or all potential energy, at any one instant. (c) can never be negative. (d) the moment of inertia changes. (e) the net torque is not zero. (f) None of the above (d) (e) (f) is constant, if only conservative forces act. is not uniquely determined for most naturally occurring systems. None of the above

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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Concept explainers

Moment of Inertia

Inertia can be termed as a resistance offered by a body to change its state. A rigid body initially at rest will apply resistance when acted by an external force that tends to change its state of rest or velocity, or a body initially at motion will provide resistance in changing its state of velocity or motion for coming to a state of rest. In other words, Newton's first law of motion describes the law of inertia of a rigid body.

Question

B. The mass moment of inertia of anybody about its center of mass is always....
(c)
zero
(d) None of the above
(a) maximum
(b) minimum
C. Angular momentum cannot be conserved if
(a) the angular acceleration changes.
(b) the angular velocity changes.
(c) there is a net force on the system.
D. The total mechanical energy of a system
(a) is equally divided between kinetic energy and
potential energy.
(b) is either all kinetic energy or all potential
energy, at any one instant.
(c) can never be negative.
(d) the moment of inertia changes.
(e) the net torque is not zero.
(f) None of the above
(d)
(e)
(f)
is constant, if only conservative forces act.
is not uniquely determined for most naturally
occurring systems.
None of the above

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