If no friction acts on a diver during a dive, then which of the following statements is true?
A. The total mechanical energy of the system increases.
B. Potential energy can be converted into kinetic energy but not vice versa.
C. (KE+ PE)beginning = (KE + PE)end
D. all of the above
I think it's C.
1 answer
Yes, the answer is C, because KE + PE = A constant.