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Introductory Physics Homework Help
Circular Motion - Banked Turns
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[QUOTE="Simon Bridge, post: 4865327, member: 367532"] Draw a free-body diagram for the object. To go in a circle, the vector sum of the forces has to point horizontally towards the center. Any other result is not a circle. This is not a static case - the object is in motion - so it is not so easy to think about inertialy. Basically there is no component of the net force which points along the surface of the track - therefore no acceleration up and down the track. You can have a go resolving the forces along the surface of the track like you would normally for an object on a slope, see what you get ;) You can also see what happens when the velocity is higher than that needed for circular motion. But if you take the frame of reference of the object, then it is easy to see that the normal force from the track balances the sum of the weight and the centrifugal pseudoforce. [/QUOTE]
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Circular Motion - Banked Turns
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