NEET-XII-Physics
exam-1 year:2016
- #28What is the minimum velocity with which a body
of mass m must enter a vertical loop of radius R
so that it can complete the loop ?
(1) ``\sqrt {gR}``
(2) ``\sqrt {2gR}``
(3) ``\sqrt {3gR}``
(4) ``\sqrt {5gR}``digAnsr: 4Ans : 4
Sol. When minimum speed of body is 5gR , then no
matter from where it enters the loop, it will
complete full vertical loop.