What is the power output of 1.4 g fly as it walks straight up a windowpane at 2.3 cm/s

Power output, P = 0.35 watts
Explanation:
It is given that,
Mass of the fly, m = 1.5 g = 0.0015 kg
Speed of the fly, v = 2.4 cm/s = 0.024 m/s
We have to find the power output of the fly. Power output is given by :

And W = F.d
d = distance traveled

Since, v = d /t
So, P = F . v

P = 0.00035 watts
or P = 0.35 watts
Hence, this is the required solution.

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