answersLogoWhite

0


Best Answer

No. Torque is required only for producing angular acceleration. A body rotates with constant angular velocity if no external torque acts on it.

User Avatar

Wiki User

6y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: If a body is rotating is it necessarily being acted upon by an external torque?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

If a body is rotating is it necessarily bejng acted upon by an external torque?

No. Just as no force is required to keep a moving body moving in a straight lineat constant speed, no torque is required to keep a rotating body rotating at aconstant speed. External torque is present only if the body's rate of rotation ischanging.


What moment of inertia does not depend on angular velocity?

An object that is rotating at constant angular velocity will remain rotating unless it is acted upon by an external torque.


What is the law of inertia for rotating systems in terms of angular momentum?

An object or system of objects will maintain its angular momentum unless acted upon by an external net torque.


Why moment of inertia is not necessarily constant for a constant mass?

According to Newton, an object in motion tends to stay in motion unless acted upon by an external force. He makes no qualification as to linear or rotational motion.


How will an object move if it is acted on by a positive net torque and force of zero?

A torque will make it rotate - or change its rotation.


Is a body at equilibrium cannot be acted upon by external forces?

no


What is the meaning of passivity?

Receiving or subjected to an action


What is the tendency of an object to stay on in motion?

an object if in motion will stay in motion unless acted upon by an external force; this is Newton's law. Also, an object if at rest will stay at rest unless acted upon by an external force; this is Newton's law.


Does all the planet stay in its orbit as it revolve to the sun?

Unless acted on by an external force, yes.


What does dynamic force mean in science?

Dynamic means the force is in motion. As opposed to a static force that is not in motion. Torque is an example of a dynamic force, where a rotating shaft imparts a dynamic force to a machine. Weight is an example of a static force, where a mass sitting on the ground is acted on by the acceleration of gravity imparting a static force on the ground.


Is a man a matter?

No.A matter is a thing that never moves from a place unless it is acted upon by an external force.


What does internal behavior mean?

Internal behavior is what occurs inside the mind as opposed to the behavior that is acted out in an external manner.