When is acceleration due to gravity negative and positive?

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Acceleration due to gravity is negative when an object is moving up. Accl'n due to gravity is positive when an object is moving down (since gravity acts downwards on an object).

^Acceleration due to gravity is always negative, while the acceleration of the ball upward was positive due to what threw it, not gravity.
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The acceleration due to gravity at the equator?

about 9.795m/s 2 but 9.8m/s 2 is almost always used. Note: centripetal acceleration (from the earth's spin) cause apparent gravity to be about 0.3% less than actual gra

What is acceleration due to gravity on Jupiter?

We can calculate the gravity on any planet or star by using this formula g = GM/r 2 where M is mass of the planet or star G is universal gravitational constant g is

What is the acceleration due to gravity on an asteroid?

Just like any other astronomical body that you might visit, the acceleration due to gravity on the asteroid's surface is going to depend on its mass, and on the distance b
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When is acceleration due to gravity positive and when is it negative?

It all depends on the sign conventions you give to the upward and downward directions. The choice is completely up to you. -- If you call the direction toward the cen
In Gravity

Why acceleration due to gravity 'g' is taken as negative for bodies moving upward?

The acceleration due to gravity is a property of the Earth's massand radius, and of gravity itself, and doesn't depend on which way something ismoving. -- The acceleration pr