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

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1. If under the action of a force

$\vec{F}$ , a body is displaced by

$\vec{s}$ , the work done is given by:

$Fs$
$\vec{F}\vec{s}$
$\int_{0}^{s}\vec{F}.d\vec{s}$
$\vec{F} \times \vec{s}$

2. Work done

can be positive only
can be negative only
can be positive or negative
cannot be assigned a sign

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