Can a ball spin on two axes? It is impossible for an object to be spinning about 2 axes of rotation simultaniously. If you try to do so the axes of rotation will combine and you will end up spinning about a different axis.
Why does the ball spin on its left side?
Can a ball spin on two axes? It is impossible for an object to be spinning about 2 axes of rotation simultaniously. If you try to do so the axes of rotation will combine and you will end up spinning about a different axis .
What is the spin on a golf ball?
Can a ball spin on two axes? It is impossible for an object to be spinning about 2 axes of rotation simultaniously. If you try to do so the axes of rotation will combine and you will end up spinning about a different axis .
Why does the ball spin when it hits the net?
May 13, 2016 · Now take a ball and spin it the same way (same direction) as coin. Notice 2 points on the ball, which are not moving (because of spinning). Imagine line, which includes both of these points. This line is rotation axis. Consider, that rotation axis of the coin is parallel with rotation axis of the ball. Reply.
What is the direction of air flow when the ball is spinning?
It looks just like rotation around a different axis with a different rotational speed. Specifically, if you set an object to rotate with angular velocity ω → 1 and also with angular velocity ω → 2, then it's really rotating with angular velocity ω → 1 + ω → 2. The direction of the vector ω → 1 + ω → 2 is the overall axis of rotation of the object.
Can an object rotate around two axes?
How many axis does a sphere have?
| Circle | Sphere |
|---|---|
| A circle is a two-dimensional or 2d shape | A sphere is a three-dimensional or 3d shape |
| A circle is defined by two axes, the x-axis and the y-axis. | A sphere is defined by three axes, x-axis, y-axis and z-axis |
How many axes of rotation are there?
Does sphere have axis?
How do spheres rotate?
Is a sphere a circle?
A Circle is a two-dimensional figure whereas, a Sphere is a three-dimensional object. A circle has all points at the same distance from its centre along a plane, whereas in a sphere all the points are equidistant from the centre at any of the axes.Apr 13, 2020
What are the 3 types of rotation?
What is a three way axis?
What are the 3 axis of rotation?
What is a 2 sphere?
Does sphere have a face?
How many sides has a sphere?
What does it mean when an object rotates around an axis?
Rotating about a particular axis means any point of that object must move in a circle around that axis.
How many axis of rotation does a 3-dimensional object have?
Continue Reading. Objects embedded in 3-dimensional space only have one axis of rotation. That includes planets. If you want two simultaneously, independent axes, you need a 4-D object, and those are rather hard to come by in this universe.
What is the plane of rotation in 4D space?
Now, in 4D space there is no single rotation axis but a whole plane of axes: an axial plane. The axial plane occupies two dimensions, both perpendicular to the plane (s) of rotation. A rotating plane would rotate around its axial plane (= around all axes contained in this plane), and inversely, the axial plane may itself be rotating around ...
How does a rigid body's axis work?
In general, a rigid body's axes can be redefined so that all the rotation occurs through one axis, though that axis isn't necessarily fixed in time. This is the key to the stability of a gyroscope. One practical example is the Earth.
How long is the sidereal day?
If you combine the two axes, you can redefine Earth's rotation in terms of external stars, and you arrive at the 'sidereal day', which is 23 hours and 56 minutes long. 7K views.
How to find singular axis in spherical geometry?
In spherical geometry, if a body has rotational velocities components along three axes, they can be summed into a singular axis. This is because rotational velocities are described by vectors that point in the “right-hand-rule” direction. Just add up the vectors, and that’s the orientation of the new axis.
What is the equation of x 4 and 23?
The equation x 4 + 23 = 0 doesn't have any real solutions. The fact doesn't apply because the highest power here, 4, is even.
What is the spin on a golf ball called?
Right Sidespin (slice) – the spin that makes your golf ball spin to the right.
What is the spin rate of a golf ball?
Definition: Spin Rate – The rate of rotation of the golf ball around the resulting rotational axis of the golf ball immediately after the golf ball separates from the club face. There are two types of golf ball spin: Backspin and Sidespin .
How do we control the irons?
The way we have control is using spin. Unlike the driver, as we get into the irons (especially the short irons), more spin is our friend. The combination of spin and land angle will give us better control.
How does backspin work in golf?
To get backspin, you will need to strike your wedge with a downward blow and make a clean contact. Backspin gives the golf ball it's trajectory: More backspin causes the ball to have a higher trajectory.
How to get maximum distance on a golf ball?
With your driver in your hands, ready to tee off, what's going through your mind? You want to DeChambeau this thing as far as you can right? The way you get maximum distance is to get the ball in the air (and we learnt we need spin to do that), keep the ball in the air (again we need spin and ball speed), then you want the ball to land and keep rolling (less backspin will help here) to maximize total carry distance.
Why is it important to look at factors that impact spin in isolation?
It is important to note that we have looked at factors that impact spin in isolation to help illustrate the impact of each factor. What matters is when you swing that club how much the ball actually spins based on the combination of the above (and other) factors and if that amount of spin is what is required for the shot that you are playing.
Why are golf clubs longer?
Longer clubs are designed to give you less back spin and some forward spin as the clubs get longer.
Does a car have 2 speed vectors?
It is analogues to how a car may move forward on road and same move to one side of road (change lane), but does not have 2 speed vectors.
Can you decompose angular velocity vectors?
You can decompose the total angular velocity vector into arbitrary many vectors.
Is the rotation axis of a coin parallel to the rotation axis of the ball?
Consider, that rotation axis of the coin is parallel with rotation axis of the ball.
How many axis can a rigid body rotate?
A rigid body can only rotate by one axis and stay rigid. In fact, the only allowed motion is a screw, whereas a rotation about an axis happens simultaneously as a translation along the same axis (called a twist ). Their relationship is called the screw pitch. A pure rotation has pitch=0.
Which theorem guarantees that any rotation of a rigid object can be expressed as a rotation around a
Euler's rotation theorem guarantees that any rotation of a rigid object can be expressed as a rotation around a single axis.
What is moment of inertia?
For a more complex asymmetric rigid object the moment of inertia is a symmetric matrix with three perpendicular principle axis. If the rotation aligns with one of these axis it will still have a constant angular velocity, but if not then the angular velocity can itself change direction even while the angular momentum remains constant. There are cases where the angular velocity vector processes around the direction of the angular momentum. This makes it look like it has more than one axis of rotation but really it is one axis that is itself rotating. Here is an animation video to show this
Does rotation have angular velocity?
If the rotation aligns with one of these axis it will still have a constant angular velocity, but if not then the angular velocity can itself change direction even while the angular momentum remains constant. There are cases where the angular velocity vector processes around the direction of the angular momentum.
Does angular momentum coincide with rotation?
Angular momentum axis does not coincide with rotation axis. Generally, rotation axis do precess around angular momentum axis. Here is the example of rotating body whose angular momentum is absolutely constant, but rotation axis does vary: A rigid body can only rotate by one axis and stay rigid.
Why do golf balls spin?
So if the ball spins as it moves it’ll drag the air around it a little, which leads to air rotating around the ball, which makes the air on one side move faster than the air on the other , which leads to a lower pressure on one ...
What happens if a ball is not spinning?
If the ball weren’t spinning, the air flow over the top and bottom would be the same (middle ball). If it were stationary but spinning, it would be dragging air to the left at the top, and to the right at the bottom (left ball). Add the two together, and the spin speeds up the air passing over the top, and slows down the air passing under the bottom (right ball). Result – it rises up (or at least drops less slowly).
What happens when you combine the flow of air around a ball with the flow of air past a ball?
If you combine the flow of air rotating around a ball, with the flow of air past a ball, then the result is a faster flow past one side and a slower flow past the other side. In this example there is less pressure on the top than the bottom. So how can you induce air to rotate around a ball in the air?
Which way does the ball move when it is turning counterclockwise?
So, in your example, when the ball is turning counter-clockwise it pulls the air around its left side a little faster. So overall the air is passing the ball on the left a little faster. However, due to the spin, a point on the right side of the ball feels the air passing faster.
Is air velocity related to the spinning ball?
It’s not simple at all. The air velocity RELATIVE TO THE SPINNING BALL is higher on the side spinning into the flow, e.g., on top for top spin. This causes the turbulent boundary layer (insured by the rough surface) to separate earlier on that side than the other.
Is the lift force needed to raise a baseball?
I don’t know the formula, but according to the video you linked, the lift force from a baseball throw is already half the force necessary to hold up the weight of the ball .
Does a tennis racket have more force?
Given that a tennis racket can apply more force and the ball is lighter…
How does the range of axes of rotation affect ball motion?
As a player , it is important for you to simply focus on what you can control consistently. You can alter your delivery to increase or decrease axis rotation and tilt by varying the amount of finger rotation used at the moment you release your bowling ball.
What is the bowling ball axis of rotation?
If you ask what is the bowling ball axis of rotation, think of it as a measurement of the angle between the initial ball spin axis and the foul line running across the lane.
What is axis tilt?
Axis tilt is a measure of the angle of the initial bowling ball spin axis to a horizontal plane. Examples are a full roller or high track delivery style would have little or no axis tilt. In these examples, the initial spin axis would be parallel or close to parallel with the lane surface. One rotation of the ball would cover the major diameter ...
What is the axis of rotation in bowling?
Axis of rotation is a measure of the direction of the initial rotation on the ball (caused by your release technique) with respect to the lane. If you ask what is the bowling ball axis of rotation, think of it as a measurement of the angle between the initial ball spin axis and the foul line running across the lane.
What is the purpose of a zero degree axis of rotation?
A zero degree axis of rotation will help keep the ball in its initial direction of travel and will not hook very much. In another layman’s term, the ball will roll out early.
How to change your bowling ball delivery?
You can alter your delivery to increase or decrease axis rotation and tilt by varying the amount of finger rotation used at the moment you release your bowling ball.
What happens if you spin your golf ball?
Of course, there is also a dark side to the world of golf ball spin. That same spin that can set you up for a short putt can also send your ball drifting off into the trees. If you impart sidespin, rather than backspin, your ball will head off in the wrong direction almost immediately after coming off of the club face.
What direction does the golf ball turn?
Generally speaking, the golf ball is going to turn in the direction that the spin is moving while in the air (not factoring in wind and other elements, of course). So, as in the example above, if you hit a shot with left to right spin, the ball is going to curve to the right. The amount of spin that is moving in that direction will dictate just how ...
What is the difference between a cheap golf ball and a high end golf ball?
A cheap golf ball with a hard cover will offer relatively little spin, while a high-end ball made from softer cover materials will spin significantly. Pick out the ball that is right for you based on your skill level and the types of shots you wish to play.
How to get more backspin on wedges?
To do so, you need to strike your wedges with a downward blow, and you need to make clean contact as frequently as possible.
What happens when you have a low spin rate?
The amount of spin that is moving in that direction will dictate just how quickly the ball turns in the air—a low spin rate will only lead to a slight curve, while a high spin rate will lead to a shot that is completely out of control. It is important to understand that basically every shot that is hit on the golf course, ...
How to strike a straight shot?
To strike a relatively straight shot, the club will need to move down that line through impact, with the club face square to that line . However, if you hit a slice or a hook, the path of the club will be moving either left or right through the ball. The path of the club has an inverse relationship to the spin that you create, ...
Why is it important to learn how to control spin?
Learning how to control spin is one of the most important skills you can develop as a golfer.
