# Damped oscilliations on a ball rolling in a U-shape

How do you calculate the rate of loss of energy on a ball moving in a U-shape (half sphere)?

Can I simply look at the height of the ball at its peaks and measure the difference between the potential energy $$V = mgh$$?

What other equations occur?

• Are you asking how to predict the outcome of an experiment that you haven't done yet? or are you asking how to interpret the result of an experiment that you have done (or might intend to do)? – Solomon Slow Feb 11 at 15:03