Physics Of Gymnastics

The physics of gymnastics is an overt and constant factor of the sport. A thorough analysis indicates there are several theories and dynamics at work. In the sport of gymnastics, physics plays a major role in most, if not all moves. This includes everything from the basic execution of a forward roll to the swing on the uneven bars. At work is a variety of forces including those of motion, torque and rotation.

Of primary importance are Newton’s Laws of Motion. The first law - a body remains at rest or in uniform motion unless acted upon by an external, unbalanced force- and the second law - concerning acceleration variability and external forces in relation to mass - are applicable. The well-known third law, however, is the most apt. Newton’s Third Law of Motion, simplified, states that to every action there is an equal and opposite reaction. When, for example, an individual gymnast runs and leaps upon the springboard, she or he exerts a specific amount of force. The springboard pushes back with the exact or equal amount of force. This propels her/him into the air and onto the pommel horse. How high and well executed the leap depends upon the amount of force she or he initially exerts upon the springboard.

Overall, Newton’s Laws of Motion allows gymnasts to determine the speed of acceleration they will require to achieve the height they need to execute a jump, move or action. Using Newton’s First Law, a gymnast can determine how much energy he or she will need to exert to overcome gravity to reach the exact height. An excellent gymnast will be able to utilize this information, combining what she or he knows about the laws of motion to produce the best results in a routine.

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The physics of gymnastics includes the concepts of torque and rotation. A dictionary defines torque as a rotating force. It is energy in physics producing or generating a rotating, twisting or turning motion. You can observe torque in action every time your see a tumbler somersault across the floor. A gymnast when he or she twists is utilizing torque physics. The gymnast initiates the action by increasing the entry speed to the somersault or twist sequence through a motion described as a back handspring or round off. These initial movements provide the speed to increase the torque and allow the gymnast to perform more than one somersault or twist.

In the physics of rotation, the body achieves “angular momentum.” On the unevens, for example, a gymnast may execute a giant swing. If he or she follows this initial movement with a tuck, the distance between the body of the gymnast and the axis of the spin decreases. This, as a result, produces a faster and more impressive spin.

Gymnastics and physics combine in even the most basic of skills the somersault. As noted previously, you can throw your body from the floor or a spring vault to achieve a somersault. If a gymnast simply leans forward or backward, the position of her body will create a vertical force and torque will follow with a somersault.

Remember, gymnastics + physics can be a winning combination. May the forces be with you.