1. A 1.0-m-long massive steel cable drags a 20 kg block across a horizontal, frictionless surface. A 100 N force applied to the cable causes the block to travel 4.0 m in 2.0 s.Graph the tension in the cable as a function of position along the cable, starting at the point where the cable is attached to the block. 2. F = T = ma 3. i was taught that if you have a frictionless surface that the tension in a rope will be the same throughout the rope but i keep getting a wrong answer. . .