averystricker5964 averystricker5964
  • 21-01-2020
  • Physics
contestada

Observations show that the dragonflies complete one revolution every 0.017 s during this "spin dry" maneuver. What is their angular speed in radians per second?

Respuesta :

sebasacevedop
sebasacevedop sebasacevedop
  • 21-01-2020

Answer:

[tex]\omega=369.6\frac{rad}{s}[/tex]

Explanation:

The time taken to complete one revolution is the period and is defined as:

[tex]T=\frac{1}{f}(1)[/tex]

The angular speed is given by:

[tex]\omega=2\pi f\\f=\frac{\omega}{2\pi}(2)[/tex]

Replacing (2) in (1) and solving for [tex]\omega[/tex]:

[tex]T=\frac{1}{\frac{\omega}{2\pi}}\\\omega=\frac{2\pi}{T}\\\omega=\frac{2\pi}{0.017s}\\\omega=369.6\frac{rad}{s}[/tex]

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