S1 : S2 : S3 = 1 : 3 : 5
Ze wzoru na drogę w ruchu jednostajnie przyspieszonym
S1 = a * t² / 2
S2 = a * (2t)² / 2 - a * t² / 2 = 4 (a * t² / 2) - a * t² / 2 = 3 (a * t² / 2)
S3 = a * (3t)² / 2 - a * (2t)² / 2 = 9 (a * t² / 2) - 4 (a * t² / 2) = 5 (a * t² / 2)
S1 / S2 / S3 = [a * t² / 2] / [3 (a * t² / 2)] / [5 (a * t² / 2)] = 1/3/5