Physical
In physics exertion is use of energy against, or for, inertia as described by Isaac Newton's First Law of Motion. In mechanics it describes use of force against a body in direction of its motion (see vector).
Read more about this topic: Exertion
Famous quotes containing the word physical:
“There could be no fairer destiny for any physical theory than that it should point the way to a more comprehensive theory in which it lives on as a limiting case.”
—Albert Einstein (1879–1955)
“One of the most horrible, yet most important, discoveries of our age has been that, if you really wish to destroy a person and turn him into an automaton, the surest method is not physical torture, in the strict sense, but simply to keep him awake, i.e., in an existential relation to life without intermission.”
—W.H. (Wystan Hugh)
“Public Opinion ... an attempt to organise the ignorance of the community, and to elevate it to the dignity of physical force.”
—Oscar Wilde (1854–1900)