Question 1: Each of 106 identical blocks sitting on a frictionless surface is connected to the next block by a massless string. The first block is pulled with a force of 106 N. What is the tension in the string connecting block 106 to block 105? What is the tension in the string connecting block 53 to block 54?
Question 2: A 2000 kg car traveling at a speed at 22 m/s skids to a halt on wet concrete where uk= .20. How long are the skid marks?