[SOLVED] Rope Forces 1. The problem statement, all variables and given/known data How much tension must a rope withstand if it is used to accelerate a 1400 kg car vertically upward at 0.50 m/s2? 2. Relevant equations F=ma 3. The attempt at a solution Well i know that the force going up is going to be 700 N and i need to somehow subtract it from a force going horizontally to get my answer. I just don't know which..maybe i'm just missing something that i can 't think of ..NEED HELp thanks!