Horizontal tests are meaningless without data on the coefficient of friction between the load and the surface it is on. With sufficiently low friction a very l

Horizontal tests are meaningless without data on the coefficient of friction between the load and the surface it is on. With sufficiently low friction a very large mass could be moved with virtually no effort: https://m.youtube.com/watch?v=uRql1fjZQf0 https://m.youtube.com/watch?v=uRql1fjZQf0