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A particle is resting on an inverted con...

A particle is resting on an inverted cone as shown. It is attached to cone by a thread of length 20 cm. String remains parallel to slope of cone. The cone is given angular acceleration of `0.5 rad//sec^(2)` then at what time does mass leave contact with surface (assuming sufficient friction):

A

20 sec

B

10 sec

C

40 sec

D

5 sec

Text Solution

Verified by Experts

The correct Answer is:
A
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