A person is driving at 20 m/s on a horizontal street and sees an obstacle 45 meters away in the road, so she slams on the brakes, going into a skid. The mass of the
car is 2.0 x 10^3 kg and µk = 0.44.

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?