Multiple choice question XXIX — task. Science CBSE, Class 9.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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A block of mass

$2\ kg$ is pulled upwards by a force

$F\ =\ 40\ N$ as shown in figure. Block is displaced by

$2\ m$ . Find work done by the applied force and also due to the force of gravity on the block. (Take

$g\ =\ 10\ ms^{-2}$ )

YCIND_240326_6140_work and energy_7.png

$-40\ J, 80\ J$
$80\ J, -40\ J$
$-80\ J, -80\ J$
$80\ J, 40\ J$

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