A particle is resting on an inverted cone as shown. It is attached to cone by a thread of length 20
Channel: Doubtnut
Date: 2020-08-30

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 givenangular acceleration of `0.5 rad//sec^(2)` then at what time does mass leave contact with surface (assuming sufficient friction) :