Q: How do you calculate the value of g of the earth?

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if g=9.8m/s, G=6.7*10-11Nm2kg-2,calculate the mass of earth, if the radius of the earth is approximately 64m

It's the same as that of Earth but the value of g varies from one object to the other. The value of the gravitational constant or the BIG "G" remains constant. I think you confused it with the LITTLE "g" which is the gravitation of a object (one with mass) or the acceleration due to gravity. The value of g on Earth and Moon is 9.8m/s^2 and 1.6249m/s^2, respectively. I hope this answers you all.

9.8 m/s2 ---------------------- Yes this is the average value of acceleration due to gravity near by the surface of the earth. As we go higher and higher level this g value decreases and becomes almost negligible. Same way as we go deeper and deeper the g value decreases and at the centre of the earth its value becomes zero.

9.8 is the value for g, which stands for Gravity.

On Earth, the gravitational constant, represented by 'g' is 10. To calculate the force in Newtons acting on an object, multiply the mass in kg by 'g'. That would mean said cat weighs 3.72 kg.

Related questions

why (G value) is 4 why its 3 or 5 or 6 extra

i think value of g becomes zero

Zero.

Zero.

It is -4.62%

if g=9.8m/s, G=6.7*10-11Nm2kg-2,calculate the mass of earth, if the radius of the earth is approximately 64m

The acceleration of gravity (value of 'g') is maximum on the earth's surface, and it decreases from there in both directions ... up into the air or down into the earth.

I think that g (the gravitational constant) varies dependent on your proximity to other massive bodies. For example the value of g on the moon is less than the value of g on earth. It is not constant throughout the universe.

maybe it is bigger in size than the earth.

It's the same as that of Earth but the value of g varies from one object to the other. The value of the gravitational constant or the BIG "G" remains constant. I think you confused it with the LITTLE "g" which is the gravitation of a object (one with mass) or the acceleration due to gravity. The value of g on Earth and Moon is 9.8m/s^2 and 1.6249m/s^2, respectively. I hope this answers you all.

as we go far from earths surface the value of g decreases this is because g is inversely proportional to the value of r^2(which is the distance of the body from the center of the earth.

For every 1% increase in the object's distance from the center of the earth,the value of 'g' in the vicinity of the object decreases almost 2%.