JEE MAIN - Physics (2022 - 25th June Morning Shift - No. 19)
A uniform chain of 6 m length is placed on a table such that a part of its length is hanging over the edge of the table. The system is at rest. The co-efficient of static friction between the chain and the surface of the table is 0.5, the maximum length of the chain hanging from the table is ___________ m.
إجابة
2
توضيح
$$(x)g\lambda = \mu (6 - x)\,g\lambda $$ where x is length of hanging part
$$ \Rightarrow x = 3 - 0.5x$$
$$ \Rightarrow x = 2$$ m