Question

a ball rolls from point a to point b. the total energy of the ball at point a isnt the same as the sum of its potential energy and kinetic energy at point b. which statement best explains this situation? a. the rolling ball doesnt follow the law of conservation of energy. b. some of the balls energy is transformed to thermal energy. c. the rolling ball loses some of its energy because of gravity. d. the ball absorbs some of its own potential energy.

Explanation:

In real - world scenarios, when a ball rolls, there is friction between the ball and the surface. Friction causes some of the ball's mechanical energy (sum of potential and kinetic energy) to be converted into thermal energy, resulting in a decrease in the total mechanical energy.

Answer:

B. Some of the ball's energy is transformed to thermal energy.