a force that originates from a source other than the two objects of the system a force that is not balanced by other forces. A system in which the only forces that contribute to the momentum change of an individual object are the forces acting between the objects themselves can be considered an isolated system. force that originates from a source other than the two objects of the system a force that is not balanced by other forces. A system in which the only forces that contribute to the momentum change of an individual object are the forces acting between the objects themselves can be considered an isolated system.
The Dow's highest closing record is 21,115.55 on March 1, 2017. The Dow set 32 new record closing highs since the 2016 presidential election. Investors were confident that Donald Trump would work with Congress to pass business-friendly legislation. That includes tax cuts and other job-boosting measures.
The S&P 500 and Nasdaq are also at record highs. Of course, it's not as if investors have suffered during Obama's tenure. The Dow has nearly tripled since hitting a low of about 6,400 in March 2009 -- shortly after Obama took office in the midst of the Great Recession. The latest rally is spectacular in how the market has swung in the weeks leading to the election and after. Related: Market euphoria forgets Trump's scary campaign promises.