5. Calculate: The mechanical advantage of a lever is how much it multiplies your effort. If you can lift a 1200-N sheep with only 600 N of effort, the lever doubled your effort, so its
mechanical advantage is 2. (Notice you can just divide load by effort: 1200 + 600 = 2.)
Calculate the mechanical advantage of the lever with the strongman at each distance:
2 meters:
3 meters:
4 meters:

22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?