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Answered 2011-01-27 12:03:22

It is negative if the upwards direction is defined as positive. Acceleration is downward.

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When is acceleration due to gravity negative and positive?

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.


Can acceleartion due to gravity be negative?

If you define up (the direction in which height numbers increase) to be the"positive direction", then the acceleration due to gravity is negative.


When can you used the positive acceleration due to gravity and negative acceleration due to gravity?

If you define the "up" direction as "positive", then the acceleration is negative, because it is downward. If you define "down" as positive, then acceleration is negative. You can use any convention; just be sure to be consistent within a particular calculation, to avoid errors.


What are the differences of uniform linear acceleration to acceleration due to gravity?

There are none. Acceleration due to gravity IS a uniform linear acceleration.


What is accileration due to gravity on earth?

Acceleration due to gravityThe acceleration produced in the motion of a body under gravity is called Acceleration.


What is equivalent of acceleration due to gravity?

acceleration due to gravity of earth is 9.8ms-2


What is the acceleration for the pull of gravity?

If you mean acceleration due to gravity it is ~9.8m/s2



What is acceleration due to the effect of Earth's gravity?

9.8 m/s^2 is the acceleration due to the earth's gravity.


The weight of an object is?

The formula: Weight = mass x acceleration due to gravityOn Earth, acceleration due to gravity has a value of about 9.8 N/kg.On the Moon, acceleration due to gravity has a value of about 1.6 N/kg.On the Sun, acceleration due to gravity has a value of about 274.1 N/kg.


What is acceleration due to gravity called?

Acceleration due to gravity means the force due to weight of an object which increases due to the gravitational pull of the earth.


What force that can change when acceleration due to gravity changes?

I suppose you are asking about what forces change when acceleration due to gravity changes. In this case, the formula for forces concerning acceleration due to gravity is as such: fg=mg. When acceleration due to gravity(g) changes, it affects the force of gravity which is also known as the weight of the object. This is shown as fg.


What are the effects of acceleration due to gravity on the time period of a pendulum?

The period of a pendulum (in seconds) is 2(pi)√(L/g), where L is the length and g is the acceleration due to gravity. As acceleration due to gravity increases, the period decreases, so the smaller the acceleration due to gravity, the longer the period of the pendulum.


How is the acceleration of an object in free-fall related to the acceleration due to gravity?

The acceleration in free fall IS the acceleration due to gravity, since "free fall" is the assumption that no forces other than gravity act on the object.


What is 9.8 of acceleration?

that's acceleration due to gravity on earth.


The weight of an object varies with the force with which gravity pulls on it?

Weight of an object depends on the objects mass and the acceleration due to gravity... Weight=mxg where m = mass g=acceleration due to gravity on earth, acceleration due to gravity = approx 9.81m/s2


Unit of gravity?

You mean acceleration due to gravity. Then it is the same as that of acceleration ie m/s2


What is the acceleration due to gravity on Mercury?

Mercury's acceleration of gravity in m/s^2 is 3.59


What is the formula for caculating weight?

Weight = (mass)(acceleration due to gravity). On Earth, the acceleration due to gravity is 9.82 m/s2.


What factors affect the acceleration due to gravity on a planet and how?

The mass of the planet and the distance the object is from the planetary center. The greater the mass of the planet, the greater the acceleration due to gravity. The closer to the planetary center, the greater the acceleration due to gravity.


How does slope compare with acceleration due to gravity?

Acceleration due to gravity (free fall) is a downward (negative) motion. On a position-time graph, the slope representing free fall will be a downward curve. On a velocity-time graph, the slope representing free fall will be a straight line with a negative (downward) slope.



What is the acceleration of an object due to the force of gravity?

The acceleration of an object due to gravity is 9.6 meters per second. The acceleration does not decrease or increase based on an object's mass.


What is force of gravity to do with 9.81?

The force due to gravity is called your weight. This force causes an acceleration. The acceleration due to gravity on the earth is 9.81 m/s/s. W = m g g = acceleration due to gravity = 9.81 m/s/s


Acceleration of free fall due to gravity?

The acceleration due to gravity at sea level at the equator is 32.25744 feet/second2 (983.2186 cm/second2)Formula for your own altitude:Acceleration Due to Gravity (cm/s2) at Altitude (h) = Acceleration Due to Gravity (cm/s2) at Sea Level - 0.3086hwhere h is the altitude in kilometers.


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