In a vertical circle of circular motion, does the speed change? URGENT

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rxrx2004
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is the speed greatest at the top of the circle and lowest at the bottom?
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Pangol
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(Original post by rxrx2004)
is the speed greatest at the top of the circle and lowest at the bottom?
It depends on the situation. If you think of a ride like the London Eye, then the speed is constant, the whole thing is turning at the same rate. If you're thinking of something like a ball on the end of a rope that is given a big enough push so that it can complete full circles, then the speed will change throughout the motion, but not in the way that you say. Think about the energy changes going on - if it is making full circles then it will have kinetic energy at all times, but its GPE will change depending on how high up it is. Applying conservation of energy will show you when it will be fastest and slowest.
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