Con un barril que mide 3 m de alto y 150 cm de diámetro se desean llenar botellas de 750 ml de cerveza. ¿Cuántas botellas se
pueden llenar? ¿Cuántas botellas son necesarias?

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?