An insect crawls up a hemispherical surface as shown (see the figure) the coefficient offriction between the insect and the surface is 1/3. If the line joining the centre of the hemisperical surface to the insect makes an angle thetawith the vertical, the maximum possible value of thetais given by

An insect crawls up a hemispherical surface as shown (see the figure)

1.	An insect crawls up a hemispherical surface as shown (see the figure) the coefficient offriction between the insect and the surface is 1/3. If the line joining the centre of the hemisperical surface to the insect makes an angle thetawith the vertical, the maximum possible value of thetais given by
Answer» SOLUTION :`COT^(-1)(3)`