how does friction forces affect the sport of surfing?
155914
Friction mainly affects surfing by making it possible for you to stand on the board. That's the only way I can think of off the top of my head.
1009238
The coefficient of friction is a measure of the slipperiness between two surfaces: the larger the coefficient of friction, the less slippery the surfaces. \nThe coefficient of static friction, μs, applies when the surfaces are at rest with respect to one another, while the coefficient of kinetic friction, μk, applies when one surface is sliding across the other. Static coefficient of friction is larger than the kinetic friction coefficient.\n\nWood- Metals (wet)         0.2 static\nWood- Metals (clean)      0.2 - 0.6 static
784702
To the extent that what we call "friction" is actually primarily mechanical locking (e.g., two sheets of sandpaper, or tire rubber and concrete mutually deforming each other) there would be no effect. I think the dividing line between friction and locking is subjective. One criterion could be: if the locking parts are large enough to see it's locking, else it's friction. Or, if oiling the surfaces would let them slide freely, it's friction. On both counts, automotive braking surfaces and fan belts are frictional. \nMany man-made and geological structures would stay intact since they rely on various forms of locking for their strength. Imagine a handful of teflon-coated but rough-textured pebbles; you can still pile them up. You can pile up perfect friction-free spheres but these require an enclosure which must have tensile strength, which stone doesn't have much of. So we can have piles of rough stones but not smooth round ones. In general we could say that mountains are mostly locking structures but there could be some partial collapses. \nAdhesion would still work. (Yes, oil can ruin adhesion, but adhesion doesn't depend on a normal force so it's not frictional.) Fasteners like nuts and bolts could be modified not to unthread (e.g., lockwiring) but smooth nails would not work. Is rope-on-rope frictional? Would we lose all those wonderful variations of knots? You decide. \nOur modes of transportation would be different; traction on rough roads but not on smooth rails. Possibly rack-and-pinion gearing between locomotive and track (that's done now on steep runs). Braking could be regenerative or viscous-damped, with some sort of locking mechanism when stopped. \nWalking? Could be more like skating if shoe soles are hard and smooth and on polished surfaces. (But sometimes that's how it is even when we have friction!) Swimming, boating, flying should work fine.
128984
There are risks involved in surfing as there is in most sports. One of the most obvious risk in surfing is the possibility of drowning. Even if you know how to swim, drowning is imminent because it is a water sport. I am a lifeguard but often fear that I will get hit on the head (by my board, another person's board or the reef), temporarily lose conscienceness, and possibly drown. Many sports involve contact and injury but not many pose a such a realistic threat. This is the reason surfers try not to go surfing alone.
845875
Ah, time to dig out the physics from last year.  If I remember correctly:\n\nStatic friction is when the force of friction is greater than the force applied; thus basically what amount of force it takes to move the object from rest.\n\nKinetic friction is when you apply a force for an object to keep sliding.  In this, it "breaks free" of your push and continues sliding.\n\nAnd the force needed to initially break the static friction (to get it moving) is much more than what is needed to keep it going.\n\nHope this helped a bit.  Just remember that static friction is associated with objects at rest and kinetic is objects in motion, and don't get the two mixed up. :*P\n\nHave fun with physics!
347555
Depends also if it is muscle or fat.  The muscle can overcome the inertia & air friction.
947314
Since the players are not accelerating, the net force acting on them is zero. So the 42 N horizontal force exerted by the offensive player must be equal to the frictional force exerted by the defensive player. The coefficent of kinetic friction must be\nk = 42N/73N = 0.56
299081
START SLOW HITTIN THE WATER OFF A BOARD AT HIGH SPEED CAN BREAK YA
564774
FRICTION .... causes a Polarized( + or - ) energy buildup .... which is released in the form of lighting....\n\nAs when you bush your hair and the hair is attracted to the Brush....  it's the same thing.. ONLY millions of times stronger...
362474
It's almost impossible to calculate that, for air friction there is a physical constant that is mentioned in mechanical physics. but for a table, there is still a massive amount of friction being applied from the table. so i don't think that it can be calculated since the air friction changes in regards to speed. it could probably be approximated in a lab thou.
515562
Friction, Heat generated to name 2 reasons.
91362
It's tranferred to heat/friction from the impact
315092
Water and impurities in the water cause friction.
937470
Getting started, have to overcome static friction.  Therefore, force applied = static friction force just before movement\n\nF = umg\nF = 75N\nm = 20kg\ng = gravity\nfind u, plug and play\n\nsame problem for sliding friction
909990
Actually while surfing with sancharnet normal tarriffs r not applied.\nCall rates are different for internet surfing.
6791
Selecting the size of your surfboard is based on personal preference. Usually the two main determining factors on size selection is speed and manuverability. Length is the general factor in effecting speed, but also the rocker (curvature of the nose), width of the board, curvature of the bottom of the board, and buoyancy (thickness and material of board). General factor in effecting manuverability is tail shape, tail shape, thickness of the rails, and shape of the rails.\nThe type of waves and conditions you ride in should effect the size of the board you choose.\nTrial and error is the only true way to find the right type of board. If you can paddle the board you should be able to ride it.
699430
Well, theres not enough information here. \nYou have to take into consideration, the angle of the ramp, the weight of the ball, whether the ball is pushed or released, the material which the ramp and ball is made of (their frictional properties)