Galilean Transformations and Relativistic Physiology

In summary: The drag force would not be relativistic, as it is dependent on the relative velocity between the object and the surrounding medium. The fact that the observer in the car sees the ball with zero velocity does not have any significance in terms of drag force, as the drag force is still acting on the ball regardless of its velocity. In summary, drag forces must be taken into account when considering the motion of an object in a moving frame of reference, and the fact that an observer in the car sees the ball with zero velocity does not change the presence or effects of these forces.
  • #1
sfr1
1
0
Hey, I have two separate questions:

1) If one is moving in a car and throws a ball straight up, say out the sun roof, the ball will have zero velocity relative to an observer in the car. Conversely, it will have the velocity of the car to a stationary observer. How does one account for drag forces in this situation? Would the drag force be relativistic and if so, does the fact that the observer in the car sees the ball with zero velocity have significance?

2) I'm guessing there haven't been any experimental data on the subject, but is there any conjecture on the possible effects of relativistic velocities on human physiology? Just curious.
 
Physics news on Phys.org
  • #2
sfr1 said:
Hey, I have two separate questions:

1) If one is moving in a car and throws a ball straight up, say out the sun roof, the ball will have zero velocity relative to an observer in the car. Conversely, it will have the velocity of the car to a stationary observer. How does one account for drag forces in this situation? Would the drag force be relativistic and if so, does the fact that the observer in the car sees the ball with zero velocity have significance?
If you are admitting drag, then the first part is no longer true. The ball will NOT have zero (horizontal) velocity any more. The observer in the car will see the ball moving backward and the stationary observer will see the ball moving forward but not as fast as the car.

2) I'm guessing there haven't been any experimental data on the subject, but is there any conjecture on the possible effects of relativistic velocities on human physiology? Just curious.
Think about the word "relative". Velocity of any kind can have NO effect on human physiology because the person is not moving relative to himself. If a person is moving at a large fraction of c, relative to an observer, then the observer will see him "compressed" but that is not a "physiological" change. The person himself would see and feel no difference- to him it is the other person who is moving.
 
  • #3
sfr1 said:
How does one account for drag forces in this situation? Would the drag force be relativistic and if so, does the fact that the observer in the car sees the ball with zero velocity have significance?
The air simply has a non-zero velocity that causes drag on the ball which is initially at rest. That is essentially how a wind tunnel works.
 

1. What are Galilean Transformations and how do they relate to relativistic physiology?

Galilean Transformations are mathematical equations that describe how physical measurements such as velocity, time, and distance change in different frames of reference. In relativistic physiology, these transformations are used to understand how physical measurements vary between different observers in motion relative to each other.

2. How did Galileo contribute to our understanding of Galilean Transformations and relativistic physiology?

Galileo was the first scientist to propose the concept of relative motion and to develop the mathematical equations for Galilean Transformations. His observations and experiments laid the foundation for understanding the relationship between motion and physical measurements, which is essential for relativistic physiology.

3. What is the difference between Galilean Transformations and Lorentz Transformations?

Galilean Transformations are based on classical mechanics and describe how physical measurements change in different frames of reference when objects are moving at non-relativistic speeds. On the other hand, Lorentz Transformations are based on Einstein's theory of special relativity and describe how physical measurements change at relativistic speeds.

4. How do Galilean Transformations and relativistic physiology impact our understanding of time and space?

Galilean Transformations and relativistic physiology show us that time and space are not absolute, but are relative to the observer's frame of reference. This means that physical measurements such as time and distance can vary depending on the observer's motion. These concepts are fundamental to our understanding of the nature of time and space.

5. How are Galilean Transformations and relativistic physiology applied in practical contexts?

Galilean Transformations and relativistic physiology are applied in various fields, such as astrophysics, engineering, and medicine. In astrophysics, they are used to understand the behavior of objects in space and the effects of gravity. In engineering, they are used to design accurate systems for measuring time, distance, and velocity. In medicine, they are used to understand the effects of motion on the human body and to develop treatments for motion sickness and other conditions related to motion.

Similar threads

I Fuel paradox arising from Galilean transformation?
    • Mechanics
Replies
4
Views
747
I Gravitational Field Transformations Under Boosted Velocity
    • Special and General Relativity
Replies
14
Views
1K
I Exploring a Flat, Expanding Universe with GR & Newtonian Mechanics
    • Special and General Relativity
Replies
7
Views
791
I Apparent Violations of Principle of Relativity?
    • Special and General Relativity
Replies
2
Views
843
Transformation law of momentum under Galilean transformation
    • Mechanics
Replies
5
Views
1K
I Active transformation use-case in homogeneity
    • Classical Physics
Replies
13
Views
768
Galilean Relativity (Invariance) Problem
    • Introductory Physics Homework Help
Replies
7
Views
2K
I Vectors & Frames Qs: Galilean & Lorentz Transforms
    • Special and General Relativity
Replies
7
Views
1K
I The general structure of relativistic QFTs
    • Quantum Physics
3
Replies
87
Views
5K
Can an object maintain uniform motion without any external force?
    • Mechanics
2
Replies
66
Views
3K

Hot Threads

Recent Insights

Back
Top