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The rope will not be equal in length when swinging from side to side, at that time the board will be tilted, and people will hold the rope, so it is impossible to ensure the shape of the rope, the balance of the board will be affected by the image, and when the rope is pulled, it will image the swing of the swing, and the left and right swing is not high, so the left and right swing should not be interesting. However, if it is a large swing, it may be interesting to run on it and run left and right to ensure balance.
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The left and right sides of the swing are fixed, so you can't float left and right, you can only swing back and forth.
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The swing is designed according to the standard that everyone can play, and the gameplay requires the player to bend his legs to push the ground to make force, so the reason why it is designed to swing forward is because people's legs can only bend forward, not left and right.
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Swing back and forth, the force point of the two ropes is the same, and there will be no danger. But there must be only one rope to force the left and right swings, and it will tilt, which is easy to cause accidents.
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The reason is that when we swing, when we tie the rope, we can't swing left and right at all, so we can only swing back and forth, so it is not easy to have accidents.
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Because the way you push your legs hard is front and back, the way your feet grow vertically, and the forefoot is also not really left and right in front, so the swing can only swing according to the direction of the person's force.
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Swinging back and forth will not produce a feeling of vertigo, the eyes will not be spent, and it is easy to get dizzy when swinging left and right, just like the rollers used in naval training, rolling left and right.
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I think that because the force of swinging back and forth is more in line with the center of gravity of the human body, it is more in line with the movement perception of human beings, and the center of gravity of people swinging left and right is unstable, and it is not easy for humans to control.
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Some swings are just a rope hanging down a ball, and you can swing as much as you want. It's okay to swing in circles, but as for the left and right swings, I guess you can be dizzy no matter how you swing.
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The front and back swing can master the balance, and the feet can be strong, and when necessary, slow down the speed of the swing, left and right swing I really hard to imagine, I feel very dizzy, and there is no time to take care of the scenery of the position, can not see the scenery from different angles.
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Because the force of swinging back and forth is more in line with the center of gravity of the human body, and it is more in line with the movement perception of human beings, the center of gravity of the left and right swingers is unstable, and it is not easy for humans to control.
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The swing is originally swinging back and forth, and if it swings from side to side, its amplitude can't go back and forth at all.
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The back doesn't hurt this day:When swinging, the human body swings back and forth with the swing board, and the potential energy and kinetic energy of the direction and speed of movement and the height from the ground are constantly changing, so that the body is in between the rapid changes of overweight and weightlessness, and the balance of the body can be coordinated, so that the abdominal muscles.
Rhythmically contracting and relaxing, which increases the strength of the waist and abdomen, so playing a swing may indeed make the waist not hurt.
Disadvantage:While swinging is a convenient and healthy activity, it also needs to vary from person to person, such as if you have a heart condition.
Patients with high blood pressure should not play the swing.
Swing precautions.
The person who swings the swing should stand up quickly when the swing moves to the lowest point, and then squat slowly, when the swing swings to the highest point, then stand up suddenly, squat slowly after the highest point, and stand up violently when it reaches the lowest point, and then repeat the above action, that is, the swing of the foot is higher and higher.
Both hands must grasp the two long ropes on the swing; Don't jump off the swing; Don't swing the swing too high. Playing on the swing safely can enhance friendship, and the Senju Hall is like a Korean ethnic group dressed in bright national costumes.
Women, in the midst of the cheers and cheers of the people, swinged, they would soar into the air, and then swoop down, enjoying themselves, and their long skirts fluttering in the wind, with a great sense of fluttering fairy.
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Question 1: Is swinging a rotating phenomenon Hello, swinging is a rotating phenomenon.
Definition: The motion of turning a figure around a point at an angle in a certain direction in a plane is called the rotation of the figure. This fixed point is called the center of rotation, and the angle of rotation is called the angle of rotation.
The rotation of the graph is that each point on the graph moves on the plane around a fixed point to rotate the position of a fixed angle, where the distance from the corresponding point to the center of rotation is equal, the length of the corresponding line segment and the size of the corresponding angle are equal, and the size and shape of the figure do not change before and after rotation.
Question 2: What is the phenomenon of swinging The movement mode of swinging is the phenomenon of rotation;
Question 3: Is the swing a translation phenomenon or a rotation phenomenon It is both a translation phenomenon and a rotation phenomenon.
Question 4: Is the movement of the swing a translation phenomenon when swinging I am a second-grade teacher in primary school, and tomorrow's open class is translation and rotation, let me tell you that swinging is not translation, but rotation. Translation is when an object moves in a straight line without changing its direction.
Rotation is the object around a point, or an axis to do a circular motion, whether it is a circle, ten circles, or a circle, as long as this kind of motion is done, then it is rotation, swinging is not moving in a straight line, but rotating around the support, it can also be said to swing!
Question 5: Is swinging a rotating phenomenon Hello, swinging is a rotating phenomenon.
Definition: The motion of turning a figure around a point at an angle in a certain direction in a plane is called the rotation of the figure. This fixed point is called the center of rotation, and the angle of rotation is called the angle of rotation.
The rotation of the graph is that each point on the graph moves on the plane around a fixed point to rotate the position of a fixed angle, where the distance from the corresponding point to the center of rotation is equal, the length of the corresponding line segment and the size of the corresponding angle are equal, and the size and shape of the figure do not change before and after rotation.
Question 6: What is the phenomenon of swinging The movement mode of swinging is the phenomenon of rotation;
Question 7: Is swinging a translation phenomenon or a rotation phenomenon It is both a translation phenomenon and a rotation phenomenon.
Question 8: Is the movement of the swing a translation phenomenon when swinging I am a second-grade teacher in primary school, and tomorrow's open class is translation and rotation, let me tell you that swinging is not translation, but rotation. Translation is when an object moves in a straight line without changing its direction.
Rotation is the object around a point, or an axis to do a circular motion, whether it is a circle, ten circles, or a circle, as long as this kind of motion is done, then it is rotation, swinging is not moving in a straight line, but rotating around the support, it can also be said to swing!
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Squatting at the highest point and standing at the lowest point can rely on the energy consumed by the body when standing up to increase the mechanical energy, so that the swing swings higher and higher.
This is based on the principle of conservation of angular momentum, because near the lowest point, it can be approximated that the resultant moment is zero, so when we change the center of gravity, we change the radius of rotation (the radius becomes smaller).
After the radius of rotation is changed, in order to conserve angular momentum, then the speed with the swing must be increased, that is, when you stand up quickly near the lowest point, the kinetic energy will increase, and the increase in kinetic energy means that it will swing higher on the other side.
Swing Tips:
While swinging, if the person stands on the swing and does not move, the movement of the swing is similar to the movement of a single pendulum. When the swing swings from the lowest point to the highest point, gravity does negative work, and the kinetic energy of the system is converted into the potential energy of the system, and when the swing swings from the highest point back to the lowest point, the potential energy of the system is converted into the kinetic energy of the system, and the mechanical energy of the whole process is conserved, and the swing will swing of equal amplitude.
If you want to swing higher and higher, you must use external force, swing yourself, there is no way to use external force, and the system will not be able to obtain energy from the outside world. Only through the work done by the person swinging himself and the internal force of the rope can his own internal energy be converted into the mechanical energy of the system, and the work of the person's internal force can only be achieved by standing up or squatting down on the swing.
But when the person swings to the balanced position, the rope pulls hard with both hands, and the rope pulls the person with the same amount of reaction force. This force overcomes the gravitational force of the person and does the work to make the person stand up suddenly, and the center of gravity of the person will move upwards at this time. The gravitational potential energy of the system increases.
The above content reference: Encyclopedia - swinging.
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Swinging is a translational phenomenon.
In physics, translation refers to the way in which an object moves in a straight direction. It corresponds to rotational motion, which is the motion of an object around a certain axis. The translation does not change the direction of the object, only the position of the object.
Thus, swinging can be seen as the translational motion of an object in the horizontal direction. When we swing the swing, the body moves back and forth with the swing, as if flying freely in the air, and the seemingly simple action of the ruler is actually controlled by the phenomenon of translation in physics.
The process of swinging is actually made up of a series of translational movements, for example, when we sit on the swing and swing backwards, both our body and arms move backwards in a horizontal direction. When we reach the highest point, our body and arms pan up for a distance, and then down back to the original position, and this process continues until the swing stops.
Things to look out for when swinging
Make sure the suffrage is complete: Choose a stable, sturdy stand before swinging and avoid using damaged or loose stands. At the same time, it is necessary to wear appropriate clothing and shoes, and do not wear clothing that is too loose or inappropriate to avoid affecting the safety of the swing.
Inspect the swing: Before using the swing, you need to carefully check whether its structure and connections are firm and reliable. If it is found to be loose, broken, high or damaged, it needs to be discontinued.
Don't overdo it: When swinging, you should pay attention to the strength and don't use too much force to avoid injury. Especially for children and the elderly, it is necessary to pay more attention to mastering the strength and frequency.
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The number of swings is related to the length of the rope. In the same time, the longer the rope length of the swing, the smaller the frequency, the slower the swing, the larger the cycle of each round-trip, the more time it takes, so the number of swings will be relatively less, so the number of swings is related to the length of the rope. Sakura Kai.
Swinging originated in ancient times, when people had to grab the vine to pick wild fruits in order to make a living, relying on the swing of the rattan to cross the ditch, which is the most primitive prototype of the swing.
Swinging is a kind of sports and entertainment project, the equipment is simple, easy to learn, and is deeply loved by people, especially children, and is made according to the principles of mechanical models and laws of motion.
With the rise of various modern spinal sports such as sports, swing has become a special activity for children in most parts of China, and in February 1986 it was listed as an official competition in the National Minority Sports Games.
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1. The swing is a rotational motion.
2. Swing is a kind of movement in ancient China in northern China to create a hole early sensitive. It was introduced to the Central Plains during the Spring and Autumn Period, and was deeply loved by people because of its simple equipment and easy to learn, and soon became popular in various places. After the Han Dynasty, swings gradually became a folk custom activity carried out during festivals such as Qingming Festival and Dragon Boat Festival and have been passed down to this day.
3. After the founding of the People's Republic of China, with the rise of various modern sports, swing sports have become a special activity for children in most parts of China, except for a few areas that are still widely popular. In February 1986, the State Sports Commission formulated the "Swing Competition Rules" (draft), and in the same year, the swing was listed as an official competition item in the National Minority Sports Games. By the 6th National Minority Games in 1999, the swing had developed into a larger event with six individual events.
Tearful eyes asked the flowers silently, the red flew over the swing means: tearful eyes asked the falling flowers to know my mind, the falling flowers were silent, chaotic, scattered little by little to fly outside the swing. Describe people's infinite melancholy and emotion. >>>More
The origin and customs of the Qingming Festival.
It is the one in the middle that is swinging, so it is not excluded that the swing on both sides will be rubbed for a long time to produce static electricity, and the electricity carried by the swing in the middle is just the opposite, and the swing on both sides repels the swing in the middle, coupled with the fact that the local climate is dry and the static electricity is not easy to dissipate, which leads to this phenomenon. Of course, I'm making it up, and it's scary to comfort myself. It's not unreasonable.
This sentence is still more reasonable, laughing and not saying is a kind of growth, that is, a manifestation of growth, indicating that this person has grown up and matured, so he just smiled at some things, not to make arbitrary comments, I feel that now I am not indifferent to everyone's things, but I feel that everyone has their own cognition and three views, and they can't comment on others at will. Even if it's more painful, it's a necessary process of growth, and it can be regarded as an experience for yourself.
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