Gabriel desplaza 2,5 m una caja de 40 kg de masa sobre una superficie horizontal. Para ello, le aplica una fuerza
paralela a la superficie, cuyo módulo es de 220 N. ¿cuál es el
trabajo resultante sobre la caja?

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?