PHYSICS · Single correct · CBSE · Physics · Work and Energy · Work and Energy
Problem
A ball is dropped from a balcony. As it falls, which statement best describes the changes in its kinetic energy (K.E.) and potential energy (P.E.)?
(a) K.E. decreases while P.E. increases
(b) K.E. increases while P.E. decreases, and their difference remains constant
(c) K.E. increases while P.E. decreases, and their sum remains constant
(d) K.E. remains constant while P.E. decreases