Astudent driving nails into a piece of wood lifts a 2.25 kg hammer it on the nail. if the nail is driven 0.0100 m into the wood, calculate the average force on the hammer 0.300 m above the top of a nail and then simply drops

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?