how does the value of g becomes negative and positive.why is it not always negative or always positive?
Asked by Anagha P | 11th Nov, 2010, 12:00: AM
Using cartesian conventions, g is always taken as negative irrespective of the direction of motion of a body with respect to ground.
g is directed along the gravitational force which is directed towards the center of earth. According to cartesian conventions, since g is directed along - y axis, it is always taken as negative.
We hope that clarifies your query.
Answered by | 12th Nov, 2010, 04:58: PM
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