Topic: Physics Reason for Negative Acceleration
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Answers to Common Questions
When thinking in terms of physics, is it possible to have a negat...
An object which moves in the positi... Read More »
Source: http://www.chacha.com/question/when-thinking-in-terms-of-physics%...
In physics, when is acceleration due to gravity positive or negat...
It all depends on your frame of reference. If you define up as positive, then g is negative (and the initial velocity of the item tossed up is positive). If you define down as positive, then g is positive (and the initial velocity of the it... Read More »
Source: http://answers.yahoo.com/question/index?qid=20120129200141AA0reCb
