Arace car starts from rest and speeds up uniformly to the right until it reaches a maximum velocity of 60\,\dfrac{\text m}{\text s}60 s m 60, space, start fraction, m, divided by, s, end fraction in 15 \,\text s15s15, space, s. what is the acceleration of the race car?

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?