A horizontal force of \( 10 \mathrm{~N} \) is necessary to just hold a block stationary against ...

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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
(a) \( 2 \mathrm{~N} \)
(b) \( 20 \mathrm{~N} \)
(c) \( 50 \mathrm{~N} \)
[AIEEE 2003]
(d) \( 100 \mathrm{~N} \)
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