The motorcycle tilts when cornering, so what is the direction of the ground to support it?

Ideally, the ground is horizontal, and when the motorcycle is stationary, the support force of the road surface is perpendicular to the contact surface, which is in the opposite direction of gravity.

When the motorcycle is driving in a straight line, the wheel has friction with the ground, and the friction direction is consistent with the driving direction, so the resultant force direction of the ground facing the motorcycle is inclined to the driving direction, and it is in the same plane with the motorcycle driving center.

When the motorcycle turns, it moves in a circular motion and has centrifugal force. The ground should provide a certain centripetal force to the motorcycle, (mainly by the motorcycle tilting, so that the center of gravity and the support force of the ground are not on the same line, so as to form a moment to offset the moment generated by centrifugal force.) This can also explain why it is easy to slip when riding a bicycle on ice or on a muddy road with mud and sand in winter, because the friction is small and not enough to provide centripetal force, so people and vehicles will "flick their tails" and fall.

When the motorcycle turns, the resultant force direction facing the motorcycle is inclined to the direction of travel, which is not in the same plane as the center of the motorcycle and is oriented towards the center of the turn.

A smooth plane can only provide a force perpendicular to it, but the ground on which the motorcycle walks should not be smooth, so it should be in the direction of the full force of friction and support. And not vertically. over。

The support force is always perpendicular to the contact surface! This is the truth!

The support force is perpendicular to the ground upwards and the object is perpendicular to the ground upwards regardless of whether it is perpendicular or not.

Perpendicular to the ground upwards.

Acting on the center of gravity.

When cars and motorcycles turn corners, because they change the direction of movement, because the body has a certain inertiaTherefore, both motorcycles and automobiles will have a centrifugal force to the outside of the bend, and the magnitude of this force is related to the total mass of the car. The car has four wheel supports, so although this centrifugal force is there, within the ultimate speed of the vehicle cornering, the four wheel fulcrums plus the weight of the car can support the body without rolling over;

Called theoretically? Because there is a certain amount of risk in the cornering of the motorcycle, the people in the cornering circle of the motorcycle are generally called bending, and some riders who specialize in practicing bending can drive the motorcycle to the knees and even elbows like the one in the moto gp, because the faster the speed, the greater the centrifugal force that needs to be withheld, so the lower the angle is needed to overcome the outward force, but in this way, the greater the lateral friction of the tires. When this lateral force exceeds the friction of the wheels, the car will be shoveled out.

Called theoretical reasons.

Because there is a certain amount of risk in the cornering of the motorcycle, the people in the cornering circle of the motorcycle are generally called the bending, and some riders who specialize in bending can drive the motorcycle to the knees or even elbows as the kind in the moto gp, because the faster the speed, the greater the centrifugal force that needs to be absorbed.

So the lower the angle is needed to overcome the outward force, but then the side friction of the tire will be greater, and when the lateral force exceeds the friction of the wheels, the car will be shoveled out.

The motorcycle turns on a level surface.

There is a tendency to centrifugal movement with the ground.

At this time, the centripetal force keeps the motorcycle and does not fly out in the direction of the tangent line of the trajectory.

This centripetal force is the direction opposite to the relative motion towards the center of the circle.

It is also the static friction between the motorcycle and the ground to keep the car from flying out.

You can understand it this way.

If there is no static friction, the car will fly out under the centrifugal force (in the tangential direction of the trajectory).

So this static friction is where the Yinchang force that keeps the car from flying out is the centripetal force.

The kinetic friction force is consistent with the direction of motion, and it may be towards the center of the circle.

Actually, this sentence is not entirely true.

That's right, because the tires have no lateral displacement relative to the ground, i.e. there is no side slip. So, the force is static friction.

What's not right: when the motorcycle turns, the body will generally be tilted, and the weight of the bike and the rider can be used to provide a large centripetal force in order to turn normally. Otherwise, it's easy to roll over.

Because it doesn't slip sideways.

The horizontal turn should be centrifugal force.

In fact, the centripetal force required for the maximum safe speed.

It is the maximum static friction between the wheel and the ground.

When the speed is greater than this safe speed, the required centripetal force will be greater than the maximum static friction force that the ground can provide, so it will do centrifugal motion;

When the car is turning, the car will have a tendency to move outward, and it is the static friction that hinders the centrifugal movement of the object-shaped mountain, so this static friction force is used to improve the centripetal force of the old mind;

The frictional force is always in the opposite direction of the relative motion of the object. Let's start with another scenario:

As shown in the figure, if A is a small ball, rotating with the disk at the edge of the rough turntable, and has the same angular velocity as the turntable, then if he is not subject to friction, he must do centrifugal motion, let him go to B after a period of time in this state, and the point of contact between the turntable and the ball will go to C in the same time, B and C are in the same straight line, so in this process, A is actually moving away from the center of the circle relative to the disk surface, and the friction force is naturally directed to the radius, which is used to provide centripetal force.

If you can understand this, it will not be difficult to solve the problem of the car.

The car has the front wheel toe and the kingpin camber, of course, there is centripetal force, you buy the most basic maintenance book of the car, the chassis has a detailed explanation, the front tow is the front tire, not straight, it is a figure-eight inward, you find a four-wheel alignment diagram to understand.

If you turn to the right and the car is driving forward, due to the inertia the car will move to the left, the ground will give the car to the right friction, and the friction will provide centripetal force.

The friction you are talking about is the friction in the front and back directions, and the friction is two forces.

Oh, yes! But there are also sideways! The analysis of the force should be thorough