Compare the power at which each of the following is moving upwards against the force of gravity? (given $g = 10 \, m \, s^{-2}$)
$(i)$ $A$ butterfly of mass $1.0 \, g$ that flies upward at a rate of $0.5 \, m \, s^{-1}$.
$(ii)$ $A$ $250 \, g$ squirrel climbing up on a tree at a rate of $0.5 \, m \, s^{-1}$.

• A
  $(i) - 5 \times 10^{-3} \, W; (ii) - 1.50 \, W$
• B
  $(i) - 4 \times 10^{-3} \, W; (ii) - 1.30 \, W$
• C
  $(i) - 7 \times 10^{-3} \, W; (ii) - 1.28 \, W$
• D
  $(i) - 5 \times 10^{-3} \, W; (ii) - 1.25 \, W$