Question

Numerical value of G can also be estimated by knowing
the:
average density of earth (u) circular motion
(u) mass of earth.​

Answer 1

Answer:

average density

Explanation:

g = GM/(R^2)

G = g [(R^2)/M]

but M = density × Volume

M = d×4/3(π)(R^3) [ earth is sphere ]

hence G = (3πg/4)[Rd]

so G can be known by d

Answer 2

Answer:

The average density of Earth is around 5.515 g/cm^3. Knowing this, we can calculate the mass of Earth which is 5.972 × 10^24 kg.

The above can then be used to calculate the circular motion of Earth, which is the orbital speed of Earth around the Sun.  

We can calculate the force of gravity between two objects by using the formula

G = (6.67 × 10^-11)(m1)(m2)/r^2,

where m1 and m2 are masses of the two objects, and r is the distance between them. With the help of all these factors, we can then calculate the numerical value of G.

G is the universal gravitational constant which is used to calculate the force of gravity between two objects. This constant is determined by a number of factors, one of which is the average density of earth.

To know more about universal gravitational constant

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