| The wheels extend below the deployed outboard hulls to assist in kedging by reducing friction, suction, and risk of hull damage. |
| The mass of the block, the applied force, and the coefficient of friction can be altered. |
| You need to apply a great pressure to finally break the static friction and start the grease moving. |
| Efficiency is the result of many factors, including airflow, combustion, and parasitic losses such as friction and windage. |
| To reduce friction on the spheres, they are levitated by voltages applied to saucer-shaped electrodes. |
| I was still furiously wiping at my eyes with my sleeve, and my skin was raw from the friction. |
