Could you please help me fix up this paragraph?

Please help me with this paragraph structure, when I read it it doesn't flaw and it seems awkward, so could you please fix it and correct it? I would really appreciate it, thanks in advance!!
Here is the paragraph:

The
experiment was done to understand Newton's three laws of motion by the analysis
of the motion of a bottle rocket moving in the air with a net force resulting
from weight and thrust force.



Newton's
first and third law is demonstrated in this experiment before the launch of the
bottle. Newton's first law is also demonstrated after the launch of the bottle.
During the bottle's flight Newton's second law comes into action and when the
bottle stops for a very short period of time in the air Newton's first law is evident. When the bottle travels downwards, Newton's first and second law is shown
again. 



These laws
are discussed further in the discussion section of this report.