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物体的重量定义为“由于地球对物体的吸引作用而使它受到的力。”重量也叫重力,方向竖直向下,它是使物体产生重力加速度的原因。这就表明:重力是引力性质的。但重力并不是地球引力的全郎,而是引力的一个分力;就方向而言,引力指向地心,重力指向则与地心稍有偏离。一、地球对物体的引力根据万有引力定律,两个质点间的引力为:f=G((m_1m_2)/(r~2))。地球上的物体不很大时,可
The weight of an object is defined as “the force it receives as a result of the earth’s attraction to an object.” The weight, also called gravity, is oriented vertically downwards and is responsible for gravitational acceleration of the object. This shows that gravity is gravitational. But gravity is not the full gravitation of the earth, but a component of gravity; in terms of direction, the gravitation points to the center of gravity and the direction of gravity deviates slightly from the center of gravity. First, the Earth’s gravity on the object According to the law of universal gravitation, the gravitational force between the two particles is: f = G ((m_1m_2) / (r ~ 2)). When the objects on Earth are not very large, you can