The tension in the string revolving in a vertical circle with a mass $m$ at the end which is at the lowest position
The tension in the string revolving in a vertical circle with a mass $m$ at the end which is at the lowest position
$\frac{{m{v^2}}}{r}$
$\frac{{m{v^2}}}{r} - mg$
$\frac{{m{v^2}}}{r} + mg$
$mg$
The tension in the string revolving in a vertical circle with a mass $m$ at the end which is at the lowest position
Tension = Centrifugal force + weight $ = \frac{{m{v^2}}}{r} + mg$