Justification of static friction
Answers
Answer:
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. ... The skis of the sled have a coefficient of static friction μs = 0.75 with the snow.
An example of static friction is the force that prevents a car wheel from slipping as it rolls on the ground.
Even though the wheel is in motion, the patch of the tire in contact with the ground is stationary relative to the ground, so it is static rather than kinetic friction.
Explanation:
Friction also acts in stationary objects. Static friction prevents objects from moving and is generally higher than the frictional force experienced by the same two objects when they are moving relative to each other.
Static friction is what keeps a box on an incline from sliding to the bottom.JuStatic friction is caused by adhesion, light chemical attraction between two surfaces.
... The force of static friction can be calculated by taking the coefficient of friction between the two surfaces and multiplying it by the normal force that the surface is applying to the object.
Explanation:
static friction is the friction that exists between a stationary object and the surface on which it's resting .Once the objects have already started moving ,kinetic friction takes over.
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