Thread 'How to define route if we only know velocity (without having widespread formulas)?' Hello! I invented the issue And that i consider to resolve it: Enable we only know velocity of going particle: ##v(t)## from ##t=a## to ##t=b##. The report traces the record of packaging from purely natural materials https://gabletoppak.com/sustainability-in-action-gable-top-cartons-to-save-our-oceans/