Kawasaki Sportsbike Riders Club - Australia - Online Forum

robracer wrote:As your body comes off the bike you can tend to twist slightly & this will cause the opposite leg to stick out, have a look at my avatar my opposite knee is off the tank & another good example is MadKaw

as Rob sad you also find the inside of your leg is locked against the back of the tank near the seat

centrifugal force...at that point, the bike actually wants to stand up and going straight, bikes like going in straight lines, but dont really physically like going round corners... it makes them inherently unstable... hence why california superbike shool tell you to turn quickly and spend the least amount of time actually turning the bike...

Nelso wrote:

seiko1 wrote:Inertial force my friends.
That actually makes the direction of "down", as far as his arse is concerned, at the bottom of the tyre.
Thats why Circus Stuntmen can ride around inside a big Cylinder at 90 degrees to the ground.
But if you slow down and lose your "momentum" you drop straight down to the ground, thats called Gravity.
Gravity, Momentum (inertia)
Please please, somebody tell me your kidding around!

Centripetal force is what you are describing.

And Centrifical, it's all the same.
All created by Inertia!!!

Centripetal force is the inertia trying to send you on a tangent and the centrifugal force is what is keeping you travelling in an arc, in this case it is the force the road applies to the tyres which transfers to the seat applying a force to your arse stopping you from flying off into the outfield. Centripetal and centrifugal are equal and opposite forces as described in Newton's third law.

Six Addict wrote:those must be fake suzukis cos this is what they really look like going round corners...

Mate that just goes to show how farking good those Suzukis are, it doesn't need a rider to corner, it just does...

Mick

Nelso wrote:Centripetal force is the inertia trying to send you on a tangent and the centrifugal force is what is keeping you travelling in an arc, in this case it is the force the road applies to the tyres which transfers to the seat applying a force to your arse stopping you from flying off into the outfield. Centripetal and centrifugal are equal and opposite forces as described in Newton's third law.

my bad nelso!!!



hope the recovery is coming along well

Nelso wrote:Centripetal force is the inertia trying to send you on a tangent and the centrifugal force is what is keeping you travelling in an arc, in this case it is the force the seat applies to your arse stopping you from flying off into the outfield. They are equal and opposite forces as described in Newton's third law.

Centripetal Force is what makes the Bike wanna keep going straight and is not what keep his arse on the seat.
Centripetal Force applies to the wheels!
The seat is applying no force to his arse but it is the reverse. His arse is applying force to the seat.
None of these forces exist without Inertia (momentum).
I'm not comfortable anymore, talking about a guy's arse and since I'm a mad scientist, I will construct a Hydrogen bomb a destroy the planet if you all keep on arguing with me
Because as you would all know, there is not limit (theoretically) to how big a Hydrogen Bomb can be made

Read this, it is from Kid's Wikepedia

Inertia is the property of matter that arises from the conservation of energy in Newton's laws of motion, which leads to the conservation of momentum, and thus, as stated by Isaac Newton in one of his laws of physics, "An object in motion tends to stay in motion, and an object at rest tends to stay at rest unless acted upon by an external force." More precisely, inertia is the property of an object that requires the application of an external force in order to change the object's velocity relative to an inertial frame. Inertial mass is a measure of inertial frame-independent inertia, and momentum is a measure of inertial frame-relative inertia.
The underlying reason for this property of matter is unknown.

The centrifugal force is an inertial force experienced in a rotating reference frame acting away from the center of the rotation. It is equal in magnitude but opposite to the centripetal force required to constrain the body to move in a circular motion.
Velocity is a vector quantity; that is, it has magnitude (speed) and direction. If a body is travelling at a certain speed and in a certain direction undisturbed it has constant velocity. Thus if a body is travelling at a constant speed in a circle, its velocity is constantly changing.

We know from Newton's first law that a body will retain its velocity unless another force acts upon it. Thus when a body travels in a circle a force must be applied to stop it from travelling in a straight line. This force is the centripetal force, the only force necessary for a circular motion. What is interpreted sometimes as a centrifugal force is the tendency of the object to follow in a straight line, which would bring it outside of its circular trajectory.
And I'm Spent!

my head hurts

Six Addict wrote:

Nelso wrote:Centripetal force is the inertia trying to send you on a tangent and the centrifugal force is what is keeping you travelling in an arc, in this case it is the force the road applies to the tyres which transfers to the seat applying a force to your arse stopping you from flying off into the outfield. Centripetal and centrifugal are equal and opposite forces as described in Newton's third law.

my bad nelso!!!



hope the recovery is coming along well

seiko1 wrote:None of these forces exist without Inertia (momentum).

It was inertia that threw me into a fucking 4wd!

Centripetal/centrifugal forces are specific to an object rotating about a point and are as a result of an objects inertia. So yes you were always right, I just corrected everyone's use of those specific terms like any good nerdling does. Now use E=MC2 to put bubbles into beer rather than make that hydrogen bomb!

As for the recovery, things are slowly improving. I can almost sneeze without pain and can jog if I hold my side, so hopefully I will be back on a bike soon. I think I'm physically ready to ride now and can hopefully fit into leathers again so it's just a matter of getting a bike now.

seiko1 wrote:The centrifugal force is an inertial force experienced in a rotating reference frame acting away from the center of the rotation. It is equal in magnitude but opposite to the centripetal force required to constrain the body to move in a circular motion.
Velocity is a vector quantity; that is, it has magnitude (speed) and direction. If a body is travelling at a certain speed and in a certain direction undisturbed it has constant velocity. Thus if a body is travelling at a constant speed in a circle, its velocity is constantly changing.

We know from Newton's first law that a body will retain its velocity unless another force acts upon it. Thus when a body travels in a circle a force must be applied to stop it from travelling in a straight line. This force is the centripetal force, the only force necessary for a circular motion. What is interpreted sometimes as a centrifugal force is the tendency of the object to follow in a straight line, which would bring it outside of its circular trajectory.
And I'm Spent!

Seems I got them back to front. It's been a long time since I had to remember any of this stuff.

dilligaf wrote: his arms are relaxed and his outside leg is nowhere near the tank?

You glad you asked this question now?

Funs over now!
Twas a great debate and congratulations to all who have partaken in yet another reason my missus reckons KSRC should be printed on a shringe, so I can inject my addiction.
I signed on at 6.30 to check my messages and I'm still here
She hates you guy's
But I love ya

Nelso wrote:

dilligaf wrote: his arms are relaxed and his outside leg is nowhere near the tank?

You glad you asked this question now?

think so but I might wait until I understand the answers.

Blurr wrote:not sure how you ride Dilligaf but your arms are meant to be relaxed. Also as Marty said at that speed and angle the force against the body and bike does the rest

I meant if his arms are relaxed he's not hanging from the grips.