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darknum
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is there a way to keep inertia in circular motin?
spacetime said:A body in circular motion will remain in circular motion if no unbalanced forces act on it. Is it the truth of this statement that you are trying to ask about?
If yes, then the answer is NO. First of all, a body can be in circular motion only if a net force acts on it. And to continue with that circular motion, a force is continually required.
Another interesting point is that the Earth continues rotating even when no force ( to cause rotation ) acts on it. This is because Earth is an ensemble of particles and those particles are in continuous circular motion due to forces by other particles. If you take them as a whole, which is the earth, then it needs an external force to keep it moving in a circle.
spacetime
www.geocities.com/physics_all/index.html
Inertia in circular motion refers to the tendency of an object to resist changes in its velocity or direction while moving in a circular path. It is one of the fundamental principles of classical mechanics.
Inertia affects circular motion by causing objects to continue moving in a circular path with a constant speed unless acted upon by an external force. This means that an object in circular motion will maintain its velocity and direction unless a force is applied to change its motion.
The main factor that affects inertia in circular motion is the mass of the object. The greater the mass, the greater the inertia, and the harder it is to change the object's motion. The speed of the object also affects inertia, as objects with higher speeds have more momentum and therefore more resistance to changes in motion.
Inertia and centripetal force are closely related in circular motion. Centripetal force is the force that acts towards the center of the circular path and keeps the object moving in a circular motion. Inertia is the force that tries to keep the object moving in a straight line. Together, they create the circular motion by balancing each other.
Inertia affects objects in circular motion with varying speeds by causing them to resist changes in their velocity. As the speed of the object increases, its inertia also increases, making it harder to change its motion. This means that objects with higher speeds will require more force to change their direction or stop their circular motion.