An acorn falls from a tree. Compare its kinetic energy K, to its potential energy U.
A. K increases and U decreases.
B. K decreases and U decreases.
C. K increases and U increases.
D. K decreases and U increases.
Answer:A
An acorn falls from a tree. Compare its kinetic energy K, to its potential energy U.
A. K increases and U decreases. B. K decreases and U decreases. C. K increases and U increases. D. K decreases and U increases.