harvey is trying to use a crowbar to open a can of paint. The crowbar moves a distance of 0.25 meters and lifts the paint can lid 0.02 m. What is the mechanical advantage of the crowbar?

Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n