Which of following statement is true \( \mathrm{P} \) (1) Friction ...

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Which of following statement is true
\( \mathrm{P} \)
(1) Friction opposes motion between two
surfaces (2) Value of static friction is \( \mu_{s} \mathrm{~N} \)
(3) For two surfaces \( \mu_{\mathrm{s}} \leq \mu_{\mathrm{k}} \)
(4) Static Friction is a self-adjusting force
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