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Because it's harder to get something to start moving than keep it moving if it already is. Coefficients of friction are merely constants dependent on the two surfaces in contact. Carpet has a higher coefficient of friction than ice because carpet has more microscopic bumps which oppose motion than smooth ice does.
What else can I help you with?
Why is kinetic friction less than static friction?
Kinetic friction is typically less than static friction because the surfaces are already in motion when kinetic friction is acting, so less force is needed to overcome the resistance between the surfaces. In contrast, static friction must be overcome to initiate motion, requiring a greater force.
Is The force needed to overcome static friction usually less than that needed to overcome kinetic friction.?
True -It's "False"!
As soon as an object starts moving what replaces static friction?
Kinetic Friction replaces Static Friction when an object is in motion.
Why coefficient of friction is less than static friction?
The coefficient of static friction is higher than the coefficient of kinetic (or sliding) friction because it takes more force to overcome the initial static friction and start an object moving than to keep it moving once it is already in motion. Static friction is present when an object is at rest, while kinetic friction occurs when an object is moving.
The force needed to overcome kinetic friction is usually less than that needed to overcome static friction true or false?
False. The force needed to overcome static friction is usually greater than the force needed to overcome kinetic friction.
Why coefficient of static friction is larger than kinetic friction?
The coefficient of static friction is typically larger than the coefficient of kinetic friction because it represents the maximum force required to start an object in motion, overcoming the initial static friction. Once the object is in motion, the kinetic friction is usually less because the surfaces are already moving relative to each other, resulting in lower resistance.
The forces needed to overcome static is usually less than that needed to overcome kinetic friction?
True -It's "False"!
What is the weakest friction among the 3 and why?
Static friction is typically weaker than kinetic and rolling friction because it requires less force to overcome the initial resistance of an object at rest. Once an object is in motion, kinetic and rolling friction require less force to maintain movement compared to overcoming static friction.
What type of friction is harder to overcome?
Static friction is typically harder to overcome compared to kinetic friction. This is because static friction prevents the initial motion of an object, requiring more force to overcome the resistance. Once the object is already in motion, kinetic friction comes into play, which requires less force to maintain motion.
Is the force needed to overcome kinetic friction greater than static friction?
No, the force needed to overcome static friction is generally greater than the force needed to overcome kinetic friction. Static friction occurs when two surfaces are at rest relative to each other, requiring more force to overcome the initial "sticking" friction. Once the surfaces are in motion, kinetic friction occurs and typically requires less force to maintain motion.
The force needed to overcome static friction is usually less than that needed to overcome kinetic friction?
true
Why is it harder to get an object to start moving then it is to keep the object moving?
It is harder to get an object to start moving because overcoming static friction requires more force than maintaining its motion due to kinetic friction. Static friction is stronger initially but once the object is in motion, it requires less force to keep it moving due to kinetic friction being lower.
