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If a fly sits halfway between the axis and the edge of a rotating phonograph turntable, what happens to its tangential speed when the RPM is tripled?

Respuesta :

AL2006
The tangential speed is directly proportional to the angular speed. If the RPM is tripled, so is the fly's tangential speed.
No matter where he's sitting.
As long as he doesn't lose his grip and get flung off.

Answer:

Tripled

Explanation:

The relation between the tangential speed and the angular speed is given by

v = r ω

where, r is the radius of the circular path and ω be the angular velocity

As we know that

ω = 2π f

Where, f is the frequency of rotation in rpm

So, v = 2π f r

As the RPM becomes tripled, the tangential velocity is also tripled.

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