Embibe Experts Solutions for Chapter: Circular Motion, Exercise 1: AMU-AT (B.Tech.) 2018

A small object placed on a rotating horizontal turn table just slips when it is placed at a distance of $4 \mathrm{cm}$ from the axis of rotation, if the angular velocity of the turn-table is doubled, the object slips when its distance from the axis of rotation is

One end of massless spring of spring constant $100 \mathrm{N}/\mathrm{m}$ and natural length $0.49 \mathrm{m}$ is fixed and other end is connected to a body of mass $0.5 \mathrm{kg}$ lying on a frictionless horizontal table. The spring remains horizontal. If the body is made to rotate at an angular velocity of $2\mathrm{rad}/\mathrm{s},$ then the elongation of the spring will be

If a particle of mass $m$ is moving in a horizontal circle of radius $r$ with a centripetal force $\left(-\frac{K}{r^2}\right)$, total energy is