Recent content by Jdnotnice

So, the acceleration is pointing up at point B because it is at equilibrium. I think at point a the cart has no momentum, so the only force acting on the cart would be gravity. Is this not correct?

Homework Statement Assume the roller coaster cart rolls along the curved track from point A to point C under the influence of gravity. Assume the friction between the cart and track is negligible. What would be the direction of the carts acceleration at point A? (The question in the image does...