Chapter 6, Problem 73GP

& While dangling a hairdryer by its cord, as shown in Figure P6.72, you observe that the cord is vertical when the hairdryer is off and that it makes an angle of $5**\#x00B0;$ with the vertical when the hairdryer is turned on. In a different experiment, you determine that the same hairdryer is pushing $\text{0}{\text{.03 m}}^{\text{3}}$ of air through itself every second. The mass of the hairdryer is 420 g. Determine the speed of the air that is leaving the hairdryer, assuming that the mass of ${\text{1 m}}^{\text{3}}$ of air is 1.2 kg and that the hairdryer is blowing air perpendicular to the wire.