A train flat car is passing a loading dock at a speed of 8.0m/s. A 100 kg cargo crate is dropped on the bed of the flat car while it is in motion. The coefficients of friction between the crate and the flat car bed are 0.6 static and 0.3 kinetic.
a) What is the horizontal acceleration of the cargo crate as it increases speed to that of the train flat car?
b) How far does the cargo crate slide on the bed of the flat car until it comes to rest?