A baseball is thrown straight up into the sky. What type(s) of energy is (are) present when the baseball reaches the apex of the throw?(1 point)
Responses
GPE and KE
GPE and KE
mostly GPE and a little KE
mostly GPE and a little KE
entirely GPE
entirely GPE
entirely KE
mostly GPE and a little KE
The correct answer is: mostly GPE and a little KE.
The correct answer is mostly gravitational potential energy (GPE) and a little bit of kinetic energy (KE).
To understand why, let's break it down:
- Gravitational potential energy (GPE) is the energy possessed by an object due to its height in a gravitational field. When the baseball is at the apex of its throw, it has reached its maximum height and has the most GPE because the higher the object is from the ground, the more GPE it has.
- Kinetic energy (KE) is the energy possessed by an object due to its motion. At the apex of the throw, the baseball momentarily comes to a stop before it starts to fall back down. Therefore, its velocity is temporarily zero, resulting in very little KE.
So, to summarize, at the apex of the throw, the baseball has mostly gravitational potential energy (GPE) and only a small amount of kinetic energy (KE).