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

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A lawn roller is pulled along a horizontal surface through a distance of

$20\ m$ by a rope with a force of

$200\ N$ . If the rope makes an angle of

$60^o$ with the horizontal while pulling, the amount of work done by the pulling force is:

YCIND_240326_6140_work and energy_9.png

$1000\ J$
$4000\ J$
$2000 \times \sqrt{3}\ J$
$2000\ J$

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