Physics

Problem

2\,500\,\text{J}

of work is done to drag a suitcase along a platform for

20\,\text{m}

. Determine the magnitude of the force applied on the suitcase. a)

250\,\text{N}

500\,\text{N}

125\,\text{N}

12.5\,\text{N}

Intuitive explanation

Work is the product of force and displacement in the direction of that force—it measures how much energy you transfer when pushing or pulling something. Here, you know the total work done and the distance traveled, so you can rearrange the work formula $W = F \cdot d$ to isolate the force. This is a straightforward plug-and-chug once you identify which quantities you have.

Intuitive explanation

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