Question

why the value of g is constant

Answer 1

⭐Hey mate⭐

here's ur answer dear:-)
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'G' is proportionality constant which is called the 'Universal gravitation Constant' . The value of G is approximately

$6.67 \times 10 {}^{ - 11}$


Let's do it numerically:-


✔✔let us consider two bodies of mass m1 and m2 separated by distance r.
Now,
F = G m1 m2/r^2

G = F × r^2/m1 m2

G = N m^2/kg× kg

= Nm^2/kg^2

If we keep r = 1 metre
m1 = 1kg
m2 = 1kg

then,

➡ G = F× r^2/ m1 m2
G = F ×1 /1 ×1
G = F


As proved above ⬆⬆⬆

The universal gravitation constant is numerically equal to the force of attraction between two bodies each of mass 1 kg and separated by distance 1 m.

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hope it helps:-)

#thankyou...☺☺