JEE Main 2024 (31 Jan, Shift 1) Physics Q33: Circular Motion

Question

A coin is placed on a disc. The coefficient of friction between the coin and the disc is $\mu$. If the distance of the coin from the center of the disc is $r$, the maximum angular velocity which can be given to the disc, so that the coin does not slip away, is :

Accepted Answer

Option 2: $\sqrt{\frac{\mu g}{r}}$

Answer

$\frac{\mu g}{r}$

Answer

$\sqrt{\frac{\mu g}{r}}$

Answer

$\sqrt{\frac{r}{\mu g}}$

Answer

$\frac{\mu}{\sqrt{rg}}$

JEE Main 31 January 2024, Shift 1, Physics Q33

Same idea in other shifts