Conclusion Questions: For which mechanism was it the easiest to determine the mechanical advantage or drive ratio? Why was it the easiest? The Easiest one was the lever because it was a first class lever so the MA was 1. For which mechanism was it the most difficult to determine the mechanical advantage or drive ratio? Our incline plane system. Why was it the most difficult? Because we had many different incline planes at many different heights and angles. At what value would you estimate the input and output forces of your compound machine? How did you arrive at your estimated values? Our input force was 5g, and our output force was 1000g. Our beginning was pushing a 5g ball down an incline plane. Our output was a 1kg weight dropped from a two foot height. thus the 5g and 1000g input and output. What modifications could you make to your compound machine to make it more mechanically efficient? We could make our lever a second or third class lever, and we could heighten our incline planes. We could also have dropped a heavier weight.