Embibe Experts Solutions for Chapter: Rotational Mechanics, Exercise 7: Exercise (Conceptual Questions)

Essential characteristic of equilibrium is

Two particles having masses $\mathrm{M}$ and $m$are moving in a circular path having radius $\mathrm{R}$ and $r .$ If their time periods are same, then ratio of angular velocity will be

Angular velocity of minute hand of a clock is:

A particle of mass $M$ and radius of gyration $K$ is rotating with angular acceleration $\alpha$. The torque acting on the particle is,

A wheel having moment of inertia $2{\mathrm{kgm}}^2$ about its vertical axis, rotates at the rate of $60$ rpm about this axis.The torque which can stop the wheel's rotation in one minute would be

A ball rolls without slipping. The radius of gyration of the ball about an axis passing through its centre of mass is $K.$ If radius of the ball be $R,$ then the fraction of total energy associated with its rotational energy will be

The ratio of time taken by a uniform solid sphere and disc of the same mass and the same diameter to roll down through the same distance from rest on a smooth inclined plane is:

When a body starts to roll on an inclined plane, its potential energy is converted into: