Question

How fast will be the roller coaster car moving at C if it has a speed of 5m/s at A and friction forces are negligible?

Answer 1

If the velocity at C is different from the velocity at A, then there should be either acceleration or retardation, right?

Answer 2

Can you post a picture, it would be more convenient.

Answer 3

i am trying to

Answer 4

the picture wouldnt attach

Answer 5

can you draw it?

Answer 6

i tried drawing as well but i cant post it

Answer 7

might have to refresh the page.

Answer 8

Find the difference in elevations between the two points and use
sum of kinetic and potential energies = constant.

Answer 9

i have posted the question again with the diagram