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You’re driving down the highway late one night at 20 m/s. Given that your tire has...

You’re driving down the highway late one night at 20 m/s. Given that your tire has a diameter of 65 cm, what is the angular speed of your tire?

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Answer #1

Let the angular speed is .

Given that the diameter of the tire is d=65 cm.

The linear speed v=20 m/s.

Let the radius of the tire is r.

The radius of the tire

  

  

Now we know the angular speed

  

The angular speed of the tire is 61.54 rad/s approximately.

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