Question

Difference between static friction and rolling friction.​

Answer 1

$static \: friction$

$<u><b><i>Static friction is a force that keeps an object at rest. It must be overcome to start moving the object. Once an object is in motion, it experiences kinetic friction. If a small amount of force is applied to an object, the static friction has an equal magnitude in the opposite direction.$

$rolling \: friction$

$<u><b><i>Rolling resistance, sometimes called rolling friction or rolling drag, is the force resisting the motion when a body rolls on a surface. It is mainly caused by non-elastic effects; that is, not all the energy needed for deformation of the wheel, roadbed, etc. is recovered when the pressure is removed.$

$difference$

$<u><b><i>Static friction is the force that must be overcome to move an object at rest with it's full surface contacting another, the difference with rolling friction is that it's simply only a portion of the surface. ... Static Friction - frictional force to be overcome to move an object at rest.$