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A coin is place at a distance 9 cm from ...

A coin is place at a distance 9 cm from centre on a rotating turn table slip. If the angular velocity of the turn table is tripled, then the distance ofn the coin from the centre will be

A

9 cm

B

3cm

C

1.5 cm

D

1 cm

Text Solution

Verified by Experts

The correct Answer is:
D
`r_(2) omega_(2)^(2)=r_(1) omega _(1)^(2)`
`r2=r_(1)omega_(1)^(2)/(omega_(2)^(2))=(9xxomega_(1)^(2))/(9 omega_(1)^(2))=1 cm`
`r2=1cm`.
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