Question

Explain why the value of g is zero at the centre of the earth?
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Answer 1

$\huge \mathbb \pink {Answer}$

ᴀᴛ ᴛʜᴇ ᴄᴇɴᴛʀᴇ ᴏꜰ ᴇᴀʀᴛʜ, ᴛʜᴇ ꜰᴏʀᴄᴇ ᴅᴜᴇ ᴛᴏ ᴜᴘᴘᴇʀ ʜᴀʟꜰ ᴏꜰ ᴛʜᴇ ᴇᴀʀᴛʜ ᴡɪʟʟ ᴄᴀɴᴄᴇʟ ᴛʜᴇ ꜰᴏʀᴄᴇ ᴅᴜᴇ ᴛᴏ ʟᴏᴡᴇʀ ʜᴀʟꜰ. ... ᴛʜᴇʀᴇꜰᴏʀᴇ, ᴡʜᴇɴ ꜰ=0, ᴛʜᴇɴ ɢ ʜᴀꜱ ᴛᴏ ʙᴇ 0. ᴛʜᴜꜱ, ᴛʜᴇ ᴠᴀʟᴜᴇ ᴏꜰ ɢ ɪꜱ ᴢᴇʀᴏ ᴀᴛ ᴛʜᴇ ᴄᴇɴᴛʀᴇ ᴏꜰ ᴇᴀʀᴛʜ.

Answer 2

Answer:

Explanation:

The acceleration due to gravity is given as

g =

GM

R2

At the centre of the Earth, the mass under

consideration is zero.

i.e. M = O

∴ g = 0

Hence, acceleration due to gravity, at the centre

of the earth, is zero.