A body of mass M is kept on a rough horizontal surface (friction coefficient $\mu $). A person is trying to pull the body by applying a horizontal force but the body is not moving. The force by the surface on the body is $F$, where
A body of mass M is kept on a rough horizontal surface (friction coefficient $\mu $). A person is trying to pull the body by applying a horizontal force but the body is not moving. The force by the surface on the body is $F$, where
- A
$F = Mg$
- B
$F = \mu Mgf$
- C
$Mg \le F \le Mg\sqrt {1 + {\mu ^2}} $
- D
$Mg \ge F \ge Mg\sqrt {1 + {\mu ^2}} $
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- [KVPY 2009]
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