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A sphere of mass m and radius r is proje...

A sphere of mass m and radius r is projected in a gravity free space with speed v. If coefficient of viscosity of the medium in which it moves is `1/(6pi)` , the distance travelled by the body before it stops is

A

`(mv)/(2r)`

B

`(2mv)/(r )`

C

`(mv)/(r )`

D

`(mv)/(4r)`

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The correct Answer is:
C
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