1. The problem statement, all variables and given/known data The Egyptian's sled system had a rather high coefficient of static friction (0.7) but a much lower coefficient of kinetic friction (0.3) How much force is required to start a block moving on level ground? We know the block is 1980 kg and after that: Assume that one person is able to apply 100N the block. Using this value, how many people does it take to pull a block at constance velocity along flat ground? 2. Relevant equations 3. The attempt at a solution Do i do Fs - Fk to find the answer to the first question? or is it just Fs?