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A ball of mass m is rotating in a circle...

A ball of mass `m` is rotating in a circle of radius `r` with speed `v` inside a smooth cone as shown in figure. Let `N` be the normal reaction on the ball by the cone, then choose the correct option:

A

`N=mg cos theta`

B

`g sin theta=(v^(2))/(r ) cos theta`

C

`N sin theta-(mv^(2))/(r )=0`

D

none of these

Text Solution

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The correct Answer is:
B, C
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