Question

53) A metallic chain 1 m long lies on a horizontal surface of a table. The chain starts sliding on the table if 25 cm (or more of it) hangs over the edge of a table. The correct value of the coefficient of friction between the table and the chain is.
$$\begin{gathered} \left(1\right)\frac{1}{3} \\ \left(2\right)\frac{2}{3} \\ \left(3\right)\frac{1}{4} \\ \left(5\right)\frac{1}{5} \end{gathered}$$

Answer 1

Dear Student ,
$$\begin{gathered} Given,Length=25cm=0.25=\frac{1}{4}m, \\ Normalreaction=\frac{3}{4} \\ Formulais,f=\mu R \\ \frac{3}{4}\mu mg=\frac{1}{4}mg \\ thecoefficientoffriction=\frac{1}{3}. \end{gathered}$$

Regards