A \( 2 \mathrm{~kg} \) mass lying on a table is displaced in the horizontal direction through \(....

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A \( 2 \mathrm{~kg} \) mass lying on a table is displaced in the
\( \mathrm{P} \)
horizontal direction through \( 50 \mathrm{~cm} \). The work done by the normal reaction will be -
(1) 0
(2) 100 joule
(3) 100 erg
(4) 10 joule


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