Question

if any thing carry on the top of mountain so his weight decrease if decrease so by what reason because force of gravity at mount evrest is also 9.8 m/s2

Answer 1

Answer:

because of air pressure

Explanation:

the higher altitude you go there is less air above you meaning less weight. for example pressure increases the deeper you go in the ocean because there is more water above you

Answer 2

Answer:

Because it is an assumption not accurate

Explanation:

the force of gravity mg appears to be constant but is not. the gravitational acceleration is actually

g=GM/(R+h)²

in which,

G= Universal gravitational constant,

M= mass of the earth (constant),

R= radius of the earth (also constant), but,

h= height at which object is placed(not same everywhere)

as the height o which a body is kept, h<<< R hence it is negligible.

so, g becomes GM/R² and hence constant (9.8m/s²)

but when we talk about mount everest, it has a very large height which cannot be neglected, and hence the denominator (R+h)²>R², the net g decreases and so does the body's weight.

Hope it helps:)

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