A particle moving in one dimension with constant acceleration takes 2secs to cover a distance of 80m between two points in 75 path it’s speed as 7 passes the second point is 20ms-1 calculate (a) the acceleration (b) the speed of the particle as it passes the first point

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?