An annular ring with inner and outer radii $R_{1}$ and $R_{2}$ is rolling without slipping with a uniform angular speed. The ratio of the forces experienced by the two particles situated on the inner and outer parts of the ring, $\frac{F_{1}}{F_{2}}$ is
$1$
$ \frac{{{R_1}}}{{{R_2}}} $
$ \frac{{{R_2}}}{{{R_1}}} $
$ {\left( {\frac{{{R_1}}}{{{R_2}}}} \right)^2} $
Do motion of vehicle on level circular path depend on mass of vehicle ?
A racing car travels on a track (without banking) $ABCDEPA$. $ABC$ is a circular arc of radius $2R$. $CD$ and $FA$ are straight paths of length $R$ and $DEF$ is a circular arc of radius $R = 100 \,m$. The coefficient of friction on the road is $\mu = 0.1$. The maximum speed of the car is $50\,ms^{-1}$. Find the minimum time for completing one round.
An unbanked curve has a radius of $60\,m$. The maximum speed at which a car can make a turn if the coefficient of static friction is $0.75$, is ...... $m/s$
For a body moving in a circular path, a condition for no skidding if $\mu $ is the coefficient of friction, is
A train is running at $20 \,m / s$ on a railway line with radius of curvature $40,000$ metres. The distance between the two rails is $1.5$ metres. For safe running of train the elevation of outer rail over the inner rail is ......$mm$ $\left( g =10 \,m / s ^2\right)$