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If you double the radius, for a fixed angular velocity, the tangential velocity will:a. Decrease by halfb. Stay the samec. Increase by a factor of twod. Increase by a factor of four

User Alterlife
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1 Answer

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Answer:

C. Increase by a factor of two.

Step-by-step explanation:

Lets take angular speed =
\omega \ rad/s

Initially radius = r m

The tangential velocity = v m/s

We know that


v=\omega r

If the radius becomes double ,lets say r'

r'= 2 r

Then

The tangential velocity = v' m/s


v'=\omega r'


v'=\omega (2r)


v'=2\omega r

v' = 2 v

Then we can say that velocity will become double.

Therefore the answer will be C.

C. Increase by a factor of two.

User Mikael Hellman
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