A student may either run or walk up the stairs to her classroom. Which statement explains how the power needed, and the gravitational potential energy gained, when she runs up the stairs compare with when she walks up them?
- ARunning provides more gravitational potential energy and uses more power.
- BRunning provides more gravitational potential energy and uses the same power.
- CRunning provides the same gravitational potential energy and uses more power.
- DRunning provides the same gravitational potential energy and uses the same power.