Solve this following

Question:

A horizontal force of $10 \mathrm{~N}$ is necessary to just hold a block stationary against a wall. The coefficient of friction between the block and the wall is $0.2$. The weight of the block is-

  1. $20 \mathrm{~N}$

  2. $50 \mathrm{~N}$

  3. $100 \mathrm{~N}$

  4. $2 \mathrm{~N}$


Correct Option: , 4

Solution:

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