Question 886551
Let's assume that the first potato is placed at the start line, and that the time spent to scoop up the potato is included in the 12ft/second.
After 1 second, he will have 3 potatoes -- including the one at the start line
After 2 second, 5 potatoes
3 seconds, 7 potatoes
4 seconds, 9 potatoes
5, 11
6, 13
7, 15
7.5 seconds to get that last potato.