A body of mass $1\, kg$ is moving in a vertical circular path of radius $1\,m$. The difference between the kinetic energies at its highest and lowest position is ......... $J$
A body of mass $1\, kg$ is moving in a vertical circular path of radius $1\,m$. The difference between the kinetic energies at its highest and lowest position is ......... $J$
$20$
$10$
$4\sqrt 5 $
$10\left( {\sqrt 5 - 1} \right)$
A body of mass $1\, kg$ is moving in a vertical circular path of radius $1\,m$. The difference between the kinetic energies at its highest and lowest position is ......... $J$
Difference in kinetic energy = $2mg\,r = 2 \times 1 \times 10 \times 1 = 20J$