A boy picks up a brick from the ground and sets it at rest on a higher shelf. He does $30\,\text{J}$ of work against gravity. Which row correctly describes the brick’s final energies?
- Agravitational potential energy gained $= 0\,\text{J}$, kinetic energy gained $= 30\,\text{J}$
- Bgravitational potential energy gained $= 15\,\text{J}$, kinetic energy gained $= 15\,\text{J}$
- Cgravitational potential energy gained $= 30\,\text{J}$, kinetic energy gained $= 0\,\text{J}$
- Dgravitational potential energy gained $= 27\,\text{J}$, kinetic energy gained $= 3\,\text{J}$