| The mass of the block, the applied force, and the coefficient of friction can be altered. |
| He is an amiable person, but very disorganised, and this often leads to frustration on the part of staff, and friction. |
| To reduce friction on the spheres, they are levitated by voltages applied to saucer-shaped electrodes. |
| The wheels extend below the deployed outboard hulls to assist in kedging by reducing friction, suction, and risk of hull damage. |
| I was still furiously wiping at my eyes with my sleeve, and my skin was raw from the friction. |
| There is a lot of gambling on the tourney, but it's the friendly, friction free kind that even novices can get involved in. |
