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A particle moving in uniform circle make...

A particle moving in uniform circle makes 18 revolutions in 1 minutes. If the radius of the circle is 10 cm, the speed of the particle is

A

`3pixx10^(-2)ms^(-1)`

B

`4pixx10^(-2)ms^(-1)`

C

`5pixx10^(-2)ms^(-1)`

D

`6pixx10^(-2)ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
D
Given, n = 18 per minute `=(18xx2pi)/(60)` and r = 10 cm
We know that `v=r omega`
Here, `v=0.1xx(18xx2pi)/(60)`
`v=3xx2pixx10^(-2)rArrv=6pixx10^(-2)ms^(-1)`
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