https://padlet.com/3067061/t2r9y31ygam8 Made with wonder en-us 2018-03-09 15:03:59 UTC 2018-03-09 15:16:37 UTC hello@padlet.com 3067061 https://padlet.com/3067061/t2r9y31ygam8/wish/240186985

Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact. Dry friction is subdivided into static friction ("stiction") between non-moving surfaces, and kinetic friction between moving surfaces. With the exception of atomic or molecular friction, dry friction generally arises from the interaction of surface features, known as asperities

]]> 2018-03-09 15:05:18 UTC https://padlet.com/3067061/t2r9y31ygam8/wish/240186985 3067061 https://padlet.com/3067061/t2r9y31ygam8/wish/240188101 Kinetic friction is a force that acts between moving surfaces. An object that is being moved over a surface will experience a force in the opposite direction as its movement. The magnitude of the force depends on the coefficient of kinetic friction between the two kinds of material.]]> 2018-03-09 15:07:02 UTC https://padlet.com/3067061/t2r9y31ygam8/wish/240188101 3067061 https://padlet.com/3067061/t2r9y31ygam8/wish/240194093 Static friction is a force that keeps an object at rest. It must be overcome to start moving the object. Once an object is in motion, it experiences kinetic friction. If a small amount of force is applied to an object, thestatic friction has an equal magnitude in the opposite direction.]]> 2018-03-09 15:16:12 UTC https://padlet.com/3067061/t2r9y31ygam8/wish/240194093