Biomechanics and Physics of Golf

In summary, the physics behind the golf swing can be modeled using a driven double pendulum for the first question and Newton's laws of motion for the second question. These models can be used to determine the equations governing the final linear velocity of the club head at impact and the transfer of torque from the feet to the rest of the body.
  • #1
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I am trying to figure out the physics behind the golf swing which breaks down into two questions:

The first seems relatively simple. If we model the golf swing just looking at the shoulders and arms and a driven double pendulum what equations would govern the final linear velocity of the club head at impact? What would it be on a horizontal plane with no affect of gravity.

Secondly, how would you model the internal transfer of torque with the body generated by the golfers feet interacting with the ground and then transfer up to the hips, torso, and shoulders?

Thanks
 
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  • #2
!For the first question, if we model the golf swing using a driven double pendulum with the shoulders and arms, the equation governing the final linear velocity of the club head at impact would be the equation of motion for a driven double pendulum. This equation is: I_1*(ddotθ_1) + I_2*(ddotθ_2) + (m_1*g*l_1*sin(θ_1)) + (m_2*g*l_2*sin(θ_2)) + (c_1*dotθ_1) + (c_2*dotθ_2) + F = 0where I_1 and I_2 are the moments of inertia of the two pendulums, m_1 and m_2 are the masses of the two pendulums, g is gravitational acceleration, l_1 and l_2 are the lengths of the two pendulums, θ_1 and θ_2 are the angles of the two pendulums, c_1 and c_2 are coefficients of damping, and F is an external driving force.For the second question, it is possible to model the internal transfer of torque with the body generated by the golfers feet interacting with the ground and then transferred up to the hips, torso, and shoulders using Newton's laws of motion. Specifically, Newton's second law states that the net force acting on an object is equal to the product of its mass and its acceleration. This means that the total torque generated by the golfer's feet will be equal to the product of the mass of the feet and the angular acceleration of the feet. This transfer of torque can then be applied to the hips, torso, and shoulders in a similar manner.
 
  • #3
for reaching out! As a biomechanical scientist, I can certainly help you understand the physics behind the golf swing. Let's start with your first question about the final linear velocity of the club head at impact.

In order to model the golf swing, we would need to consider the forces acting on the club head and the motion of the double pendulum (shoulders and arms). The equations that govern the final linear velocity would include the conservation of angular momentum, as well as the equations of motion for the double pendulum. Additionally, we would need to account for factors such as the golfer's swing speed, the angle of the club face, and the aerodynamics of the club head.

As for your second question, the transfer of torque throughout the body during the golf swing is a complex process that involves multiple joints and muscle groups. This transfer of torque is necessary for generating power and accuracy in the swing. To model this, we would need to consider the forces acting on the feet as they interact with the ground, as well as the biomechanics of the joints and muscles involved in the swing.

Overall, the physics of the golf swing is a fascinating and intricate subject, and there is still much research being done in this area. I hope this helps to give you a better understanding of the biomechanics and physics behind the golf swing. Feel free to reach out with any further questions.
 

1. What is biomechanics and how does it relate to golf?

Biomechanics is the study of the mechanical principles of movement and how the body produces force and motion. In golf, biomechanics helps us understand the movements involved in the golf swing and how to optimize them for better performance.

2. How does physics play a role in golf?

Physics is the study of matter, energy, and motion. In golf, physics plays a crucial role in understanding the forces and factors that affect the flight of the ball. It helps us understand concepts such as velocity, acceleration, and spin, which are all important in determining the outcome of a shot.

3. What aspects of biomechanics and physics are important for a successful golf swing?

There are several aspects of biomechanics and physics that are important for a successful golf swing. These include proper body alignment and posture, efficient transfer of energy from the body to the club, and understanding how different club designs and materials affect the flight of the ball.

4. How can biomechanics and physics be used to improve a golfer's performance?

By understanding the principles of biomechanics and physics, golfers can make adjustments to their swing technique, equipment, and training methods to optimize their performance. This can lead to longer and more accurate shots, as well as a reduced risk of injury.

5. Are there any potential risks or limitations to applying biomechanics and physics to golf?

While biomechanics and physics can greatly improve a golfer's performance, there are some limitations and risks to consider. Applying too much force or using improper technique can lead to injuries, and relying solely on biomechanics and physics can neglect the mental and strategic aspects of the game. It's important to find a balance between these elements for optimal results.

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