1. The problem statement, all variables and given/known data I have to crush a juice box using minimum force but plenty of distance and i must use three different types of items from gears to levers and anywhere between. for this i decided to use momentum to crush it. gravity must not be intentionally used. Mechanical advantage should be as high as possible and there can be no electricity or thing of the sort. I have wood and rope and heavy items and i am able to cut the wood to form gears but not exact teeth. 2. Relevant equations How would i do this? ( I'm thinking gears and spinning an item attached to a rope) How long would it take? What else would i need? How big? How would i figure out the mechanical advantage? 3. The attempt at a solution Gears and string with heavy object is what im thinking.