Figure shows four paths along which 4 different objects move from a starting point to a final point, all in the same time interval. The gridlines are equally spaced. Rank the paths according to the average speed, greatest first.
4, 2, 1, 3
Path 4 will have largest average speed as maximum distance is covered in the same interval of time. Next will be 1 and 2 which have equal average speeds and last will be 3(minimum distance in equal interval).