According to the concept of length contraction, what happens to the length of an object as it approaches the speed of ligh and then slows down, eventually coming to a stop? o it is always observed as contracting it is always observed as the same length o it is observed as expanding and then contracting back to its original length o it is observed as contracting and then expanding back to its original length

When an object moves its length contracts in the direction of motion. The faster it moves the shorter it gets in the direction of motion. The object in this question moves and then stops moving. So it's length first contracts and then expands to its original length when the motion stops. The speed doesn't have to be anywhere near the speed of light. When the object moves its length contracts no matter how fast or slow it's moving.

Explanation:

When an object moves its length contracts in the direction of motion. The faster it moves the shorter it gets in the direction of motion. The object in this question moves and then stops moving. So it's length first contracts and then expands to its original length when the motion stops. The speed doesn't have to be anywhere near the speed of light. When the object moves its length contracts no matter how fast or slow it's moving.

this could be newton#'s law of cooling. the cooling curve is exponential

because growing process had stoped after 4-5 year