An insect is at the bottom of a hemispherical ditch of radius $1 \mathrm{~m}$. 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: $\left(\mathrm{g}=10 \mathrm{~ms}^{-2}\right)$

Question:

An insect is at the bottom of a hemispherical ditch of radius $1 \mathrm{~m}$. 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: $\left(\mathrm{g}=10 \mathrm{~ms}^{-2}\right)$

  1. $0.20 \mathrm{~m}$

  2. $0.45 \mathrm{~m}$

  3. $0.60 \mathrm{~m}$

  4. $0.80 \mathrm{~m}$

JEE Main Previous Year Single Correct Question of JEE Main from Physics Laws of Motion chapter.

JEE Main Previous Year Sep. 06, 2020


Correct Option: 1

Solution:

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