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| 1. |
Brifly discuss the nature of force of froction |
| Answer» Friction\xa0is a surface\xa0force\xa0that opposes relative motion. The\xa0frictional force\xa0is directly related to the normal\xa0force\xa0that acts to keep two solid objects separated at the point of contact. There are two broad classifications of\xa0frictional forces:\xa0static friction\xa0and\xa0kinetic friction.\xa0Friction\xa0is the\xa0force\xa0resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of\xa0friction: Dry\xa0friction\xa0is a\xa0force\xa0that opposes the relative lateral motion of two solid surfaces in contact. | |