PH-2449

Work done

Physics · Secondary 4 · Medium · Work done

A 0.80 kg trolley is pushed with a constant horizontal force of 6.0 N and moves 3.5 m along a smooth track. What is the gain in kinetic energy of the trolley?

$2.1\,\text{J}$
$4.8\,\text{J}$
$14\,\text{J}$
$21\,\text{J}$

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