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A body of mass m=10kg is attached to one...

A body of mass m=10kg is attached to one end of a wire of length 0.3 m. The maximum angulr speed (in rad `s^(-1)`) with which it can be rotated about its other end in space station is (Breaking stress of wire `=4.8 xx 10^(7)Nm^(-2)` and area of cross-section of the wire `=10^(-2) cm^(2)` is:

A

`5 xx 10^(-7) m^(2)`

B

`5 xx 10^(-6) m^(2)`

C

`5 xx 10^(-4) m^(-2)`

D

`25 xx 10^(-6) m^(2)`

Text Solution

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The correct Answer is:
A
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