Thread 'How to define path if we only know velocity (devoid of prevalent formulation)?' Hello! I invented the trouble And that i consider to unravel it: Allow we only know velocity of transferring particle: ##v(t)## from ##t=a## to ##t=b##. There is apparently no way of simplifying or rearranging the integral. https://gabletoppak.com/customized-packaged-drinking-water-with-your-brand-logo/