An armadillo rolls in a straight line in the desert. the horizontal position of the armadillo in meters over time is shown. what is the displacement of the armadillo between 0s and 24s ?

what is the distance traveled by the armadillo between 0s and 24s

Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?