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A 65.0 kg man is riding on a 12.5 kg bicycle. Together they have a kinetic...

A 65.0 kg man is riding on a 12.5 kg bicycle. Together they have a kinetic energy of 2.80 x 10^3. If the bicycle has wheels with radii of 0.450 m, then their frequency of rotation is

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Expert Solution

Let the frequency of rotation is n.

Let the velocity is v.

Given that the mass of the man and the bicycle is m=(65.0+12.5) kg.

The radius of the wheels of the bicycle is r=0.450 m.

We know the formula of kinetic energy

  

  

     

  

  

Now let the angular velocity of the wheels is .

We know the linear velocity of the wheels

  

  

The frequency of their rotation is 3.0 Hz approximately.

genius_generous answered 2 years ago
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