An insect is at the bottom of | Friction | JEE-MAIN 2020

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JEE MAIN 2020

06.09.20_S1

Question

An insect is at the bottom of a hemispherical ditch of radius 1 m . It crawls up the ditch but starts slipping after it is at height h from the bottom. If the coefficient of friction between the ground and the insect is 0.75 , then h is $\left(\mathrm{g}=10 \mathrm{~ms}^{-2}\right)$

Select the correct option:

A

0.45 m

B

0.80 m

C

0.20 m

D

0.60 m

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