Question

what is the value of g..????

Answer 1

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Answer 2

http://en.wikipedia.org/wiki/Gravitational_acceleration
For the surface of earth \( 9.8\; m/s^2\)

Answer 3

Sometimes you'll see it as -9.8 m/s^2 because when setting up the problem, someone just decided that up is the positive y-direction and down is in the negative y-direction.

Answer 4

9.81m/s^2

Answer 5

it depends on where you are located in the world, since the g will be different all around the world. ex: the g will be different on the ground level in Gothenburg-Sweden compared to Stockholm-Sweden. But also if you're doing an experiment on the first floor of a building (while using g) the result will be different from if you'd do it on the 5th floor. But now again, the difference is so minimal that it's never really mentioned.
We usually say that the g is 9.81 m/s^2 .

Answer 6

negative*

Answer 7

g is based off of G, the gravitational constant, and the average radius of the earth since it's mainly just an approximation.

Answer 8

Anyone playing with G? @AravindG is here !! :P
wel g=9.8 on surface of earth
G=6.676*10^-11

Answer 9

in fact if you are on the surface of eart,you are the object of gravitation? in one hand you will submit the force (M*m*G)/R² where m is your mass and R is earth's radius, in the other hand this force is equal to m*g. So you can calculate g

Answer 10

You mean gravitational acceleration? That depends on where you are. On earth 9.81 m/s/s. On a more massive body more less on a less massive one.