- #1
chrisyuen
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Homework Statement
Homework Equations
Nil
The Attempt at a Solution
Why does the bar y have a factor of 0.5 for the forumla of area centroid?
Thank you very much!
Statics is the branch of physics that deals with the study of objects at rest or in equilibrium. It involves analyzing the forces acting on an object and their resulting effects on its motion.
Friction is a force that resists the motion of an object when it comes into contact with another object. It is caused by the interaction between the two surfaces and can either be kinetic (when the objects are in motion) or static (when the objects are at rest).
Static friction is the force that keeps an object at rest while kinetic friction is the force that acts on an object in motion. In other words, static friction prevents an object from moving while kinetic friction slows down the motion of an object.
The formula for calculating static friction is Fs ≤ μsN, where Fs is the force of static friction, μs is the coefficient of static friction, and N is the normal force acting on the object. The value of μs depends on the nature of the surfaces in contact.
Friction can cause objects in motion to slow down or stop due to the resistance it creates. It can also cause objects to heat up due to the energy lost through friction. In some cases, friction can also be beneficial, such as in the case of car brakes or shoes gripping the ground for traction.