An object with mass $m$ is raised by a vertical distance $d$ in a time of $t$. Which equation is used to determine the power $P$ needed to lift the object?
- A$P = \frac{md}{gt}$
- B$P = \frac{mgd}{t}$
- C$P = \frac{dt}{mg}$
- D$P = \frac{m}{gdt}$
Physics 5054 · O Level · Power