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ICSE Class 10 Physics 2013 Paper

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A coolie is pushing a box weighing 1500 N1500\,\mathrm{N} up an inclined plane 7.5 m7.5\,\mathrm{m} long on to a platform, 2.5 m2.5\,\mathrm{m} above the ground.
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Question : 35 of 70
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Calculate the mechanical advantage of the inclined plane.
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