" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
1/20 = 1/30 + 1/s¹
3-2/60 = 1/s1
1/60 = 1/s1
60 cm = s¹
M = s¹/s = 60/30 = 2 kali