For an object of mass $m$ moving through height $\Delta h$ close to the Earth’s surface, the change in gravitational potential energy $\Delta E$ is represented by the equation below. $\Delta E = mg\Delta h$ Which equation is required to derive this expression?
- Akinetic energy $= \frac{1}{2} \times \text{mass} \times (\text{speed})^2$
- Bmoment $= \text{force} \times \text{distance}$
- Cweight $= \text{mass} \times \text{acceleration of free fall}$
- Dwork done $= \text{power} \times \text{time}$