Special Relativity - Spatial Race

In summary, the tortoise challenged the hare to a race and the fox was the judge. The fox declared the turtle as the winner after 20 minutes, while the hare claimed he arrived one minute before the turtle. The velocity of the hare and the tortoise can be calculated by dividing the distance by the time it took each one to reach the finish line, but the winner ultimately depended on the reference clock used.
  • #1
arcanis
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Homework Statement


The tortoise challenged the hare to a race in the woods. The fox is the judge and he stood still. The rabbit started the race 6 minutes after the turtle.

The fox said that the turtle won the race after 20 minutes and that the hare arrived 1 minute after the hare. But the hare said "That is not true, I arrived one minute before the turtle".

In the turtle's clock, It was marking 16 minutes when it crossed the line.

Homework Equations


What is the velocity of the hare and the tortoise? Could you explain what happened?

The Attempt at a Solution


I know the velocities, but this is completely weird for me. How can the winner depend of the referential?
 
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  • #2
The velocity of the hare and the tortoise can be calculated by dividing the distance by the time it took each one to reach the finish line. The distance is the same for both, so we can calculate the velocities as follows:Tortoise: Distance/Time = 6min/20min = 0.3 m/s Hare: Distance/Time = 6min/19min = 0.31 m/s In this case, the hare was slightly faster than the tortoise. However, the fox said that the turtle won the race after 20 minutes, while the hare claimed that he arrived one minute before the turtle. This means that the turtle reached the finish line first according to the fox's clock, but the hare reached it first according to his own clock. This is because the clocks were not synchronized, so they were running on different times. Therefore, the winner of the race depended on which clock was used as the reference.
 

1. What is special relativity?

Special relativity is a theory proposed by Albert Einstein in 1905 to explain the relationship between space and time. It states that the laws of physics are the same for all observers in uniform motion and that the speed of light in a vacuum is constant for all observers, regardless of their relative motion.

2. What is the spatial race thought experiment?

The spatial race thought experiment is a hypothetical scenario used to explain the principles of special relativity. It involves two spaceships moving at a constant speed, one chasing the other. According to special relativity, both spaceships will experience time dilation and length contraction, resulting in a race where both spaceships measure different distances and times.

3. How does special relativity affect our perception of time and space?

Special relativity states that time and space are relative concepts and can change depending on the observer's frame of reference. This means that time can pass at different rates and distances can appear differently to different observers, depending on their relative motion.

4. What is the significance of the speed of light in special relativity?

The speed of light is considered a fundamental constant in special relativity and plays a crucial role in the theory. It is the maximum speed at which all objects in the universe can travel, and it remains constant regardless of the observer's frame of reference. This means that no object can travel faster than the speed of light.

5. How does special relativity impact our understanding of the universe?

Special relativity has had a significant impact on our understanding of the universe. It has led to the famous equation E=mc², which explains the relationship between mass and energy. It has also helped to explain various phenomena such as time dilation, length contraction, and the twin paradox. Special relativity has also paved the way for the development of other theories, such as general relativity, which have further advanced our understanding of the universe.

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