When does an object break up due to gravity and tidal forces as it approaches a planet? a) when it moves past the planet very quickly b)when it passes the roche limit c) when its density is very high d) when it becomes tidally locked to the planet

B)when it passes the Roche limit

Explanation:

The Roche limit is the distance within which a celestial body that is held by its own gravitational forces shall disintegrate.

This is due to the effect of another celestial body exceeding the self attraction gravitational force held by the first celestial body.

Objects disperse and form rings in the orbit at the Roche limit.

Outside the Roche limit the objects tend to coalesce

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