An insect crawls up a hemispherical surface very slowly (see the figure). The coefficient…
Physics · NEET · NTA Exams — Laws of Motion
An insect crawls up a hemispherical surface very slowly (see the figure). The coefficient of friction between the insect and the surface is 1/3 If the line joining the centre of the hemispherical surface to the insect makes an angle \(\alpha\) with the vertical, the maximum possible value of \(\alpha\) is given by [IIT-JEE 2001]
- \(\cot \alpha=3\)
- \(\tan \alpha=3\)
- \(\sec x=3\)
- \(\operatorname{cosec} \alpha=3\)
Answer
(B) =3
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