- #1

sdfsfasdfasf

- 74

- 12

- Homework Statement
- x

- Relevant Equations
- x

So far I believe that speed changes during vertical circular motion, and its very hard to get uniform circular motion that is in the vertical plane.

This is because there is a difference in vertical height between the bottom/top of the circle so at the top the object must have done work against gravity (and hence slowed down). I have found this page http://hyperphysics.phy-astr.gsu.edu/hbase/Mechanics/cirvert.html which furthers my belief that this is true.

However I keep on seeing different authors and youtube videos where people write down something like "N - mg = Fc at min" and "mg - N = Fc" at max, this doesn't sit right with me because the two v variables are clearly different (unless the object is truly staying at a constant speed, is that even possible in vertical motion?), so the two equations look like rubbish.

Can someone help me out and convince me I have the right idea? If not then I'd love to be told where my mistakes are.

Thank you! My physics course only covers horizontal uniform circular motion but they can always add an extension question where gravity is involved. Thanks.

This is because there is a difference in vertical height between the bottom/top of the circle so at the top the object must have done work against gravity (and hence slowed down). I have found this page http://hyperphysics.phy-astr.gsu.edu/hbase/Mechanics/cirvert.html which furthers my belief that this is true.

However I keep on seeing different authors and youtube videos where people write down something like "N - mg = Fc at min" and "mg - N = Fc" at max, this doesn't sit right with me because the two v variables are clearly different (unless the object is truly staying at a constant speed, is that even possible in vertical motion?), so the two equations look like rubbish.

Can someone help me out and convince me I have the right idea? If not then I'd love to be told where my mistakes are.

Thank you! My physics course only covers horizontal uniform circular motion but they can always add an extension question where gravity is involved. Thanks.