手で紙の片側を手放すと、重力が作用するため、紙は落ちます。重力は、オブジェクトを互いに引き寄せる力であり、地球上ではすべてを中心に引き寄せます。紙はもはやあなたの手によって持ち上げられていないので、それに作用する重力のために地面に向かって落ちます。

紙が落ちる速度は、紙の質量、重力場の強度、紙に作用する空気抵抗など、いくつかの要因に依存します。空気抵抗がない場合、紙は一定の加速で落ち、落ちるにつれてより速く速くなります。しかし、空気抵抗が存在する場合、紙はよりゆっくりと落ち、最終的には末端速度に達します。これは、空気抵抗の力が重力のバランスをとる一定速度です。

全体として、紙の落下は、紙に作用する重力とそれに作用する空気抵抗との相互作用の結果、および紙がどのように落ちるかの具体的な詳細は、特定の条件との物理的特性に依存します紙。
When you let go of one side of the piece of paper with your hand, the paper will fall due to the force of gravity acting on it. Gravity is a force that pulls objects towards each other, and on Earth it pulls everything towards its center. Since the paper is no longer being held up by your hand, it will fall towards the ground due to the force of gravity acting on it.

The speed at which the paper falls will depend on several factors, including the mass of the paper, the strength of the gravitational field, and the air resistance acting on the paper. In the absence of air resistance, the paper would fall at a constant acceleration, getting faster and faster as it falls. However, in the presence of air resistance, the paper will fall more slowly and eventually reach a terminal velocity, a constant speed at which the force of air resistance balances the force of gravity.

Overall, the falling of the paper is a result of the interplay between the force of gravity acting on the paper and the air resistance acting on it, and the specific details of how the paper falls will depend on the particular conditions and the physical properties of the paper.