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JAMB Physics 2022 Paper

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Question : 40

Total: 40

If an object just begins to slide on a surface inclined at 30º to the horizontal,the coefficient of friction is?

√3
$\frac{\sqrt{3}}{2}$
$\frac{1}{\sqrt{2}}$
$\frac{1}{\sqrt{3}}$

Solution:

A body sliding down a plane inclined at 30o to the horizontal,

Has coefficient of friction = tan 30º or $\frac{1}{\sqrt{3}}$

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