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What else can I help you with?
Why is it difficult to start a cart than to pull it after starting?
Because the coefficients of static friction in the bearings etc. are (as always) larger than the corresponding coefficients of dynamic friction.
Do you need a spark to start a fire?
Fuel, an oxidizer, heat, and an ignition source.
Is the limiting friction is always less then rolling friction?
no limiting friction is not less than rolling friction
Which direction does friction always work?
Friction's direction is always against the direction work is being applied to.
Who is creator kinetic friction or limiting friction?
Not God.. Friction was always there, that's why planets exist.
Is it true that kinetic friction is always greater than the maximum value of static friction?
Yes, it is generally true that kinetic friction is always greater than the maximum value of static friction.
Is the earth when a body is in motion there is always friction to the opposite motion?
Friction.
Is the static friction is always zero?
Actually, the static friction is neverzero.
When was friction first used?
friction is a natural phenomenon it is always being used.. always, every second of everyday there is friction in action everywhere even in the deep reaches of space. I mean literally EVERYWHERE and ALWAYS.
What kind of friction must you overcome to get an object to start moving?
You must overcome static friction to get an object to start moving. Static friction is the force that resists the initial motion of an object at rest.
What does friction always act in?
Friction always acts in the opposite direction to that of the motion of the other object. Meaning, friction slows down the motion of an object by exerting opposing forces on it.
Friction can cause a force that pulls on it how?
Friction is always against the direction of the movement.
