The kinetic energy of the ball would be the lowest at the highest point of its trajectory, just before it starts falling back towards the Earth.
The student is incorrect because the increase in speed and kinetic energy of the falling object is a result of the conversion of potential energy (due to its initial height) into kinetic energy. This process does not violate the law of conservation of energy as the total energy (potential + kinetic) remains constant.
A person throws a ball up into the air, and the ball falls back toward Earth. At which point would the kinetic energy be the lowest? (1 point)
An object falls through the air, gaining speed as it falls. A student claims that this creates new energy, and so it breaks the law of conservation of energy. Which statement describes why the student is incorrect? (1 point)
1 answer
1 answer