yes there is still alittle friction on a ball that is in pure rolling because there is still interaction between the atoms that contact the surface of the ball and the floor
Friction is equal to zero when objects are in a state of pure rolling motion, such as a ball rolling on a perfectly smooth surface. In such cases, there is no relative motion between the contacting surfaces, so friction is not needed to resist motion.
Rolling Friction is caused primarily by the interference of small indentations formed as one surface rolls over another. This is the idea behind the frictional forces involved with wheels, cylinders, and spheres. In the ideal case of the wheel, we must first look at the forces acting on the wheel. In pure rolling motion, friction is required to stop, start and change the motion of a wheel. Static Friction is a force which resists the lateral movement of two objects which are touching each other. A simple example of static friction might be a wooden block sitting on a ramp. Unless sufficient force is exerted, the block will not slide down the ramp, because static friction holds its place and resists sliding. When objects have a high coefficient of friction, it means that a lot of force will be required to break through the force of static friction and create movement, while low coefficient means that less force will need to be exerted.
the pure rotation is something which has no translation motion actually people has a confusion that rolling is pure rotation? but i want to clarify that rolling is a combination of translation and rotation motion
a pure bleed means when the body bleeds with no impurities
no
Purity of the soul and that of the body go hand in hand. This When one's soul is pure that person gets good feelings of the body. Also, when one's body is pure, their soul will feel way more pure.
If air friction can be neglected, then the speed/time graph for any falling body would bea straight line that slopes up. If the body were falling near the Earth's surface, then theslope of the line would be (9.8 meters per second) per second.I'm pretty sure that the lighter objects are the ones most affected by air friction,and the heavier ones approximate the math of pure gravity more closely.Think about dropping a rock and a piece of tissue.
The picture = the complete subject The = an article acting as an adjective, modifies the word 'picture'. "What picture? THE picture." Picture = a noun acting as the simple subject Is = complete verb Is = a linking verb Perfectly made = the complete predicate adjective Perfectly = an adverb modifying the word 'made'. "How was it made? It was made PERFECTLY." Made = the predicate adjective, describes the subject Of pure silver = a prepositional phrase acting as an adverb Of = the preposition Pure = adjective modifying the word 'silver' Silver = a noun acting as the object of the preposition
It can be but it can not be pure carbon
air and oxegen
Coefficients of friction are unitless values because they represent the ratio between the force necessary to overcome friction and the force pressing two surfaces together. Since the units cancel out in this ratio, coefficients of friction are expressed as pure numbers without units.
Aside from pure conformity - I could say that people wear underwear because their parents taught them to do so - underwear does help to prevent excess friction between those body parts where it is worn, and the heavier (and scratchier) layers of outer clothing.