A small block is at rest on the floor of a railroad boxcar

Last updated: 6/12/2023

A small block is at rest on the floor of a railroad boxcar that has length 20 as shown in the figure The coefficient of kinetic friction between the floor of the car and the block is u There is no friction between car and ground The car originally at rest begins to move with constant acceleration a Assume a ug wwwwww TITTIT