PH-2376

Work done

Physics · Secondary 4 · Medium · Work done

A 3.0 kg block is pushed along a horizontal floor with a constant force of 12 N and moves 5.0 m. Assuming no change in kinetic energy, how much work is done against friction?

$60\,\text{J}$
$12\,\text{J}$
$36\,\text{J}$
$15\,\text{J}$

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