Find the volume v of the described solid s. The base of s is the region enclosed by the parabola y = 4 − 2x2 and the x−axis. Cross-sections perpendicular to the y−axis are squares.

With any turning vehicle, the rear wheels follow a shorter path than the front wheels. the longer the vehicle is, the greater the difference will be. truck drivers initially swing out before making a turn. what isn't shown in this illustration is as car straightens out, the front wheels must travel a greater distance and the tail end drags on the shortest path.

Ithink the answer is d.