Special Relativity

The purpose:
We are going to learn more about the special relativity by studying the time dilation and length contraction of different initial frame.

First, we study the time dilation of two different initial frame by doing the first exercise on the Web. We are asked to the distance traveled and the time measured with different initial frame. One is stationary and another is moving. We are going to use the theorem that speed of light is always constant. We successfully ask all the questions and find the time dilation of two different frame.

Secondary, we are going to do the second exercise and study the contraction of length in order to the special relativity. We cannot finish the exercise as we cannot figure out whether the length measure by the stationary observer or moving observer is correct length. Finally, we find the length measured by the stationary observer is correct length and there is contraction of length measured by the moving observer.