Samir is a short put champion and is planning

Question

to participate in the next Olympic Games. He
starts to practice and completes 49 throws
from a center point in different directions.
When he started to measure all the distances,
he found that every throw landed in a spot 1-ft
away from the previous one. In addition, the
line connecting center point and the new spot
always was perpendicular to the line
connecting the new spot and the previous
spot. If his last throw distance was 1 feet, how
much distance was his very first throw?