But, of course, the question is not about loading barrels into trucks -- it is about mechanical advantage and the simple physics of force multiplication. It might have been a little better if the question had used a lever instead of a ramp. A&Ps sometimes have to figure weight & balance (levers), and sometimes even have to figure out how to place heavy things in an airplane without breaking anything in the process. In some airplanes (big cargo-haulers mostly) they even use ramps for loading stuff.
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-- Carl
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