Dede5903 Dede5903 29-12-2023 Mathematics contestada The length of an elastic string is ametres when the longitudinal tension is 4 N and bmetres when the longitudinal tension is 5 N. The length of the string in metres when the longitudinal tension is 9 N isA. a - bB. 5b - 4aC. 2b - 1/4aD. 4a - 3b