Physics 11 help??!! 1. The problem statement, all variables and given/known data a car jack applies a force of 3000N to lift one side of a car a distance of 10 cm. in order to accomplish this the person using the jack needed to apply a force of 1200N to the handle moving it 30 cm. what is the jack's efficiency? 2. Relevant equations eff = (mgh/f*d) x 100% 3. The attempt at a solution idk where 2 start??