A block of weight $W$ is kept on a rough horizontal surface (friction coefficient $\mu$). Two forces $W/2$ each are applied as shown in the figure. Choose the $CORRECT$ statement :-
A block of weight $W$ is kept on a rough horizontal surface (friction coefficient $\mu$). Two forces $W/2$ each are applied as shown in the figure. Choose the $CORRECT$ statement :-
- A
for $\mu > \frac{\sqrt 3}{5}$ block will move
- B
for $\mu > \frac{\sqrt 3}{5}$, work done by friction force is zero (in ground frame).
- C
$\mu > \frac{\sqrt 3}{5}$ friction force will do positive work (in ground frame)
- D
for $\mu > \frac{\sqrt 3}{5}$ block will move
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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.......$m.$
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- [JEE MAIN 2022]
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