The distance s that an object falls varies directly with the square of the time, t, of the fall. If an object falls 16 feet in one second, how long will it take for it to fall 112 feet?

The number of calories you burn depends on your weight. a 110-pound person burns 163 calories during 30 minutes of tennis. find the number of calories that a 190-pound person would burn during the same activity, assuming they burn calories at the same rate.