Need help with principle of relativity

In summary, the conversation discusses finding the coordinates of a point in a moving reference system, as well as the equations of motion for particles in that system. The homework also involves using Galilei's principle of relativity, Galilean transformation, and inertial reference frames. The reference system is shown in images provided. The individual asking for help is told to attempt the homework and show their work in order to receive assistance.
  • #1
latel
2
0
I am sorry if it is wrong topic , and sorry if it is a bit bad text - translated it from estonian to english. If someone could do it and maybe explain this- that would be great.

Homework Statement



1)In the reference system K is point M with coordinates x=5m , y=2m and z=8m. You have to find that point coordinates in refenrece system K', which moves with velocity 7 m/s aiming z-axis.

2)Particles equations of motion in reference system K' is
x'=5t+4
y'=0
z'=0

Write out this particles equations of motion in reference system K, if:

a) K' is still according to K and its deperature point coordinates are O' (2;0;0).

b) K' is moving according to K evenly and straight with velocity 10 m/s aiming x-axis.
On observation start-moment t=0 both coordinate systems deperature points were same.

Homework Equations


Galilei's principle of relativity, Galilean transformation and and inertial reference frame.
http://img163.imageshack.us/i/referencesystem.png/
http://img692.imageshack.us/i/referencesystem2.png/


The Attempt at a Solution


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Last edited:
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  • #2
Hi latel, welcome to PF!:smile:

We don't do your homework for you here; you need to make an attempt and show your work, so that we can see where you are having trouble.
 
  • #3
I can't understand this - how to put these into coordinate system ?
 

What is the principle of relativity?

The principle of relativity states that the laws of physics are the same for all observers in uniform motion, regardless of their relative velocities. This means that there is no preferred frame of reference in which physical laws hold true.

Who first proposed the principle of relativity?

The principle of relativity was first proposed by Albert Einstein in his theory of special relativity in 1905. However, the concept of relativity was also discussed by Galileo and Newton in their theories of motion.

How does the principle of relativity affect our understanding of time and space?

The principle of relativity states that the laws of physics are the same for all observers, regardless of their relative motion. This means that time and space are not absolute, but rather relative to the observer's frame of reference. This concept is further explored in Einstein's theory of general relativity.

What is the difference between special relativity and general relativity?

Special relativity deals with the laws of physics in inertial reference frames, while general relativity extends these laws to include accelerated frames of reference. General relativity also takes into account the effects of gravity on time and space, while special relativity does not.

How has the principle of relativity been tested and confirmed?

The principle of relativity has been extensively tested and confirmed through experiments and observations. One of the most famous tests is the Michelson-Morley experiment, which showed that the speed of light is constant and independent of the observer's frame of reference. Other tests include the observation of time dilation and length contraction in high-speed particles and the bending of light by massive objects, both of which are predicted by the principles of relativity.

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