.Calculating Power Output of 1.8-g Spider

[Precursor]

Homework Statement

Calculate the power output of a 1.8-g spider(the black dot) as it walks up a windowpane at 2.3 cm/s. The spider walks on a path that is at [tex]25^{o}[/tex] to the vertical as illustrated below.

http://img19.imageshack.us/img19/4107/spiderl.jpg

Homework Equations

P = W/t
F = mg

The Attempt at a Solution

P= W/t = Fd/t = Fv cos [tex]\theta[/tex] = mgv cos 25 = (0.0018 kg)(9.81 m/s^2)(0.023 m/s) cos25 = 0.00037 W.

Is this correct?

Thanks

 

[rl.bhat]

While calculating the power you have not considered the angle given in the problem.
So W = F*v*cos(theta)

 

[Precursor]

I have actually just editted my post after realizing this.