- #1
fisico30
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hello forum,
consider an object attached to a rope and rotating in a horizontal loop. The tension T in the rope provides the centripetal force points toward the center of the loop.
But forces always exist in pair (action-reaction).
what is the other force in the pair where one of the force is the tension T?
The object, due to its inertia, naturally tends to move along a line tangent to the circular loop. Because of that, the object pulls on the rope causing a tension in it...But we cannot say that that force is inertia, since inertia is not a force...
It is not even the centrifugal force, which is only an apparent, fictitious force that only exists because the object is inside a rotating system. It is not a physical force either...
thanks,
fisico30
consider an object attached to a rope and rotating in a horizontal loop. The tension T in the rope provides the centripetal force points toward the center of the loop.
But forces always exist in pair (action-reaction).
what is the other force in the pair where one of the force is the tension T?
The object, due to its inertia, naturally tends to move along a line tangent to the circular loop. Because of that, the object pulls on the rope causing a tension in it...But we cannot say that that force is inertia, since inertia is not a force...
It is not even the centrifugal force, which is only an apparent, fictitious force that only exists because the object is inside a rotating system. It is not a physical force either...
thanks,
fisico30