A grasshopper with mass $0.12\ \text{g}$ leaps upwards. Over a period of $0.020\ \text{s}$, it pushes off using its back legs and then leaves the ground at a speed of $3.0\ \text{m s}^{-1}$. What is the average power developed by the grasshopper's legs?
- A$9.0 \times 10^{-3}\ \text{W}$
- B$1.8 \times 10^{-2}\ \text{W}$
- C$2.7 \times 10^{-2}\ \text{W}$
- D$37\ \text{W}$