In a vertical circle of radius $r$, at what point in its path a particle has tension equal to zero if it is just able to complete the vertical circle
In a vertical circle of radius $r$, at what point in its path a particle has tension equal to zero if it is just able to complete the vertical circle
Highest point
Lowest point
Any point
At a point horizontally from the centre of circle of radius $r$
In a vertical circle of radius $r$, at what point in its path a particle has tension equal to zero if it is just able to complete the vertical circle
Let the tension in the string at the highest point be $T$ Minimum speed required by the particle at the highest point to complete the vertical circular motion is $\sqrt{g r}$
$\therefore \quad \frac{m v^{2}}{r}=T+m g$
OR $\quad \frac{m(g r)}{r}=T+m g \quad \Longrightarrow T=0$
Thus tension can be zero at the highest point.