Question

Three identical smooth cylinders each of mass $\sqrt{3}kg$ are placed as shown in the figure. Find the normal reaction between cylinder $A$ and cylinder $B$.

Answer 1

Let normal reaction between cylinder $A$ and $B$ be $N$.

$2N\sin 60°=mg$

$2N\times \frac{\sqrt{3}}{2}=\sqrt{3}\times 10$

$N=10N$