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

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A barbell of mass \(5\ kg\) is raised to a height of \(3\ m\) above the ground. Calculate the work done by the boy. Take acceleration due to gravity \(g\ =\ 10\ ms^{−2}\).

\(150\ J\)
\(-150\ J\)
\(-200\ J\)
\(200\ J\)

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15. Multiple choice question XV

Exercise condition: