Simple Machines

Simple Machines problem 15

We want to load a log on a tractor-trailer. If we lift the whole log with our hands to the height of the trailer, we do 250 J of work. To make the work easier, we roll it to the trailer on a set slope with a force of 125 N. The length and height of the slope are in the ratio 10 : 4. Calculate how high the trailer is.


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