So, yeah, my midterm is on friday, and i can't even figure out how to do questions like these because i just don't understand the way my prof teaches and the textbook has nothing relevant. So far, i've used work energy theorem to find the work done to stop the block. then i wrote out a net work equation stating the Wnet=Wfriction+Wtension, and from there went on to solve u, where Wnet and Wtension were -, and Wfriction was positive. my final answer was u=0.72. i am not sure if this is the right steps and answer. once this image is approved, can someone please just give me a basic step by step breakdown that doesn't complicate things too much? thank you.