Question

Calculate the power output of a 1.5 g fly as it walks straight up a windowpane at 2.4 cm/s .

Answer 1

Answer:

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 :

$P=\dfrac{W}{t}$

And W = F.d

d = distance traveled

$P=\dfrac{F.d}{t}$

Since, v = d /t

So, P = F . v

$P=mg\times v$

$P=0.0015\ kg\times 9.8\ m/s^2\times 0.024\ m/s$

P = 0.00035 watts

or P = 0.35 watts

Hence, this is the required solution.