a 100 lbs bucket with 500 lbs of sand in it is lifted by a crane to 80ft in the air at a rate of 2ft per second, but sand simultaneously leaks out through a hole at 3 lbs per second.
How to make fine aluminum powder?
How To Make Aluminum Powder
If you can find the amount of sand at the start and at the end, you can average the before weight and the after weightSo then in the formula in your first answer Work done weight distance you can use average weight At 2ft per second, it'll take 40 seconds to lift it to 80 ftOver 40 seconds, the amount of sand lost is 120 lbsSo average 500 and 380 and plug that into the formula.
Trying to make flash powder? Be careful! Use a belt sander or a circular saw with a grinding blade on it.
