Question

what is the value of G and g in the gravitation chapter class 9

Answer 1

Hello dear user the value of G is 6.67408 × 10-11 m3kg-1 s-2

and value of g is 9.8 m/s2

hope it will help u if so plz mark brainliest

Answer 2

Heya dear!!

The Gravitational Constant(G)

➡️It is numerically equal to the Gravitational force between two unit masses kept unit distance apart.

➡️The value of G is 6.67×10^-11 Nm^2 kg^-2

Acceleration due to gravity(g)

➡️The value of g is 9.8 m/s^2

Since g= G×M/R^2
=>g=(6.7×10^-11×6×10^24)/(6.4×10^6)^2
=>g=9.8m/s^2

where G= Gravitational Constant
M=Mass of Earth
R=Radius of Earth

➡️The value of g varies due to the following factors:

(i) g varies with altitude(g decreases with increase in height above the earth surface).

(ii) g decreases with depth

(iii) g varies with the shape of the earth

➡️The value of g decrease when we go above the surface of the earth.

g'=g(R/R+h)^2

➡️The value of g decreases with depth. At a height d below the surface of earth,

g'=g{1-(d/R)}

Hope it helps✌️✌️