A small block of mass `4 kg` is attached to a cord passing through a hole in a horizontal
Channel: Doubtnut
Date: 2020-07-26

A small block of mass `4 kg` is attached to a cord passing through a hole in a horizontal frictionless surface. The block is originally revolving in a circle of radius of `5 m` about the hole, with a tangential velocity of `4 m//s`. The cord is then pulled slowly from below, shortening the radius of the circle in which the block revolves. The breaking strength of the cord is `200 N`. What will be the radius of the circle when the cord breaks?