A $2 \mathrm{~kg}$ brick begins to slide over a surface which is inclined at an angle of $45^{\circ}$ with respect to horizontal axis. The co-efficient of static friction between their surfaces is:
Solution
<p>$$\begin{aligned}
& m g \sin \theta=\mu \cdot m g \cos \theta \\
& \Rightarrow \tan \theta=\mu=1
\end{aligned}$$</p>
About this question
Subject: Physics · Chapter: Laws of Motion · Topic: Newton's First Law
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