Is the gravitational force on an object with a mass of 1kg 9 8N?

Strictly speaking, the gravitational force on an object with a mass of 1 kg is not necessarily exerted.

1) It is related to the latitude of the earth.

In fact, due to the fact that the earth is moving in a uniform circle, the force exerted by the earth on the object (gravitational force) is partly used for circular motion and partly as the so-called "gravitational force". The Earth can be seen as a sphere, and the centripetal force of the object moving in a circular motion is perpendicular to the Earth's axis, and gravity is the other component. When the latitude changes, the ratio of the two forces changes.

2) It is related to the height above the center of the earth.

It is actually due to the force of the earth on the object (gravitational force, we are talking about). It is inversely proportional to the square of the distance of the object from the center of the earth. Therefore, the higher the ground is, the smaller the gravitational pull is. Gravity is a component of gravity and naturally changes.

People generally use g 10, and it is already correct to write 9 8, as long as it does not involve outer space, you can use 9 8

At the south or north pole, the mass of an object is 1kg, and at the place between the equator and the equator, a part of the gravitational force provides the centripetal force of the object moving with the earth, so it is called small (only the more precise one can be measured, so it is generally not felt).

Theoretically, the decrease in g-value within 1000 meters of the Earth's surface is not large and sometimes negligible.

There is nothing wrong with the value of g that varies with latitude and decreases with height above the ground. However, in projects where the requirements are not very precise, the change in g-value is negligible.

Not a fixed equator small, two maximum.

This is the approximate value on the Earth's surface. Generally, it is measured to one decimal place.

It is true that g, as you say, increases with latitude and decreases with height above the ground.

You're right. The gravitational acceleration varies from place to place on the Earth, but it doesn't need to be too accurate in practical problems.

The g-value is not considered unless it involves the issue of outer space.

It is generally believed that g = 9 8, but it is actually variable.

At high altitude, the acceleration due to gravity is inversely proportional to altitude.

The formula is: g'g = (r r+h) squared.

Sorry, the square won't hit hehe.

There is a difference. 9 8 is the average.

10g=

10g of gravitational force on an object.

Known: chain state buried mass m = 10kg, g = trace denier kg, find: gravity g?

The gravitational force experienced by the object:

g=mg=10kg×

Answer: The gravity it is subjected to is 98n

Because g=mg, the steps are: there is g=mg deformed into m=g=g=49/49=5kg

1 kgf = , the gravity of a person with a mass of 90kg on the earth is 90kg force = 90 * the gravity on the moon is 882 6 = 147n.

The Moon weighs 100 N, and the Earth is subject to gravity 600 N.

Mass = 600

Heavy is a common force in daily life, but also an important force in the concept of mechanics, its calculation formula is g = mg, g is the proportion coefficient, the magnitude of gravity is about, gravity changes with the change of latitude, indicating that the weight of an object with a mass of 1kg is subjected to gravity.

Then gravity is the object, regardless of the special case, which is the mass of kilograms, that is, grams.

The gravitational acceleration on Earth is about right, and for ease of calculation, the value is 10. According to Newtonian mechanics formula f=ma, f=, a=10

The solution is m=, the unit is kilograms, so the mass is 50 grams.

a. "The mass of an object with gravity is bai1n, and its DU mass is said to reflect the change of mass with the change of gravity."

Change; is wrong, quality is a property of the right to the object; therefore a error;

b. "The gravitational force of an object with a mass of 1kg reflects the relationship between gravity and mass, and gravity is proportional to mass, which can represent the meaning of "g=; Therefore berror;

c. Confusing the units of mass and gravity; Therefore c is wrong;

d. The unit of gravity is n, which means n kg; Therefore D is wrong;

Therefore, choose B