| 1 | They reeved the rope through the pulley. | |
| 2 | The pulley has no mass the pulley is completely frictionless and the string has no mass-- it's a massless string. | |
| 3 | Last of all to disappear were the sounds of building; the echo of brick on brick and the continual whine of pulleys. | |
| 4 | Younger teens then yank the rocks up with a pulley. | |
| 5 | Our flag is raised to the top of a pole by a rope and two pulley. |