Clock postulate calculations?

In summary, the conversation discusses the concept of time dilation and the calculation of gamma using the formula gamma = sqrt(1-v^2). The individual is having difficulty understanding the systems of measurement and how they work together, specifically in relation to the speed of light. The conversation also touches on the incorrect calculation of 1-8.00486227x10^-15 and the correct calculation being 1000000000000000x10^-15 - 8.00486227x10^-15 = 999999999999992x10^-15. The individual is unsure of how to measure time in this context and how to calculate the actual amount of time difference.
  • #1
StrangeDays
2
0
Let me start by saying I most likly have no idea what I am doing. Also, that I realize the factor by which the moveing clock differs from the stationary one will be very very small. Sorry if this belongs in the math fourm, i thought it might require physics knowledge.

What I'm having problems with is the systems of measurement and how they work together.

gamma = sqrt(1-v^2)
v relitive to the speed of light.
60 Miles per hour = 26.8224 Meters per second
26.8224/299792458 = 8.946989587×10^-8(m/s)/c
(8.946989587×10^-8)^2 = 8.00486227x10^-15
1-8.00486227x10^-15 = 2.00486227x10^-15
sqrt(2.00486227x10^-15) = 4.477568838x10^-8
gamma = 4.477568838x10^-8


And now I'm totaly lost.
How is time measured? What do I multiply gamma with to get an actual # of how much of a second the clock is off?

and/or do I have no idea what I am doing?
 
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  • #2
1-8.00486227x10^-15 = 2.00486227x10^-15

This step is incorrect. It should be 1000000000000000x10^-15 - 8.00486227x10^-15 = 999999999999992x10^-15 which is almost 1.
 
  • #3


It's great that you are exploring the clock postulate and trying to understand how time is affected by motion. Let me try to break down the calculations for you.

First, the clock postulate states that time is relative and can be affected by motion. This means that an observer's perception of time can be different depending on their relative motion to an event or object.

The equation you are using, gamma = sqrt(1-v^2), is known as the Lorentz factor and it helps us calculate the difference in time between a stationary clock and a moving clock. This factor takes into account the speed of the moving clock (v) relative to the speed of light (c).

In your example, you have converted the speed of 60 miles per hour to meters per second (26.8224 m/s) and then divided it by the speed of light (299792458 m/s). This gives you the value of v (8.946989587×10^-8 m/s)/c.

Next, you squared this value (8.946989587×10^-8)^2 to get 8.00486227x10^-15. This value represents the difference in time between the stationary and moving clock. However, this is a very small value and may be difficult to understand.

To get a more tangible result, you can subtract this value from 1 (1-8.00486227x10^-15) to get 2.00486227x10^-15. This represents the fraction of a second that the moving clock is ahead of the stationary clock.

To get an actual number, you can take the square root of this value (sqrt(2.00486227x10^-15)) which gives you 4.477568838x10^-8. This means that for every second that passes for a stationary clock, the moving clock will be 4.477568838x10^-8 seconds ahead.

In summary, your calculations are correct and you are on the right track. Time is measured in seconds and the Lorentz factor (gamma) helps us understand the difference in time between a stationary and moving clock. Keep exploring and asking questions, that's the best way to learn!
 

1. What is the clock postulate in physics?

The clock postulate is a fundamental principle in physics that states that the laws of physics are the same for all observers in uniform motion. This means that the physical laws governing the behavior of objects and systems are independent of the observer's frame of reference.

2. How is the clock postulate used in calculations?

The clock postulate is used in calculations to determine the effects of time dilation and length contraction in special relativity. By considering the relative motion of two observers, one can use the clock postulate to calculate the differences in time and distance measurements between the two frames of reference.

3. What is time dilation and how is it related to the clock postulate?

Time dilation is a phenomenon in which time appears to run slower for an object in motion compared to a stationary object. This is related to the clock postulate because it is used to calculate the difference in time measurements between two frames of reference in special relativity.

4. Can the clock postulate be applied in everyday situations?

Yes, the clock postulate can be applied in everyday situations. For example, it explains why GPS satellites have to account for time dilation in order to accurately determine the position of an object on Earth. It also explains why time passes differently for astronauts in space compared to people on Earth.

5. Are there any limitations to the clock postulate?

The clock postulate is limited to situations where objects are moving at constant speeds in a straight line. It does not apply to objects that are accelerating or in non-inertial frames of reference. Additionally, the clock postulate does not take into account the effects of gravity, which is described by general relativity.

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