Answer
$W=3.7\times 10^{-4}W$
Work Step by Step
To find the power, use the formula for power $$P=Fvcos\theta$$ In this case, $F=mg$. This leaves $$P=mgvcos\theta$$ Substituting known values of $m=1.8g =0.0018kg$, $v=2.3cm/s=0.023m/s$, and $\theta=25^{\circ}$ yields a power of $$P=(0.0018kg)(9.8m/s^2)(0.023m/s)cos(25^{\circ})=3.7\times 10^{-4}W$$
