Question

In the following situations, which one does not have kinetic energy? A. a baseball in a catcher’s glove B. a lady walking slowly across the street C. a hockey puck sliding on the ice D. a man running around a track

Answer 1

The correct answer is A because kinteic energy means movement, motion and the baseball is in catcher's glove is not moving is static, doesn't show motion

Answer 2

The right answer is A. a baseball in a catcher’s glove.

The other propositions all contain a verb testifying to the mobility of the subject.

Kinetic energy is the energy that a body possesses because of its movement. The kinetic energy of a body is equal to the work necessary to bring the body of rest to its movement. It can be deduced from this, in the context of Newtonian physics, that a variation of kinetic energy of a body for a certain duration is equal to the work of the external forces exerted on that body. This is the theorem of kinetic energy.