aThe first Apple logo was designed by Ron Wayne, co-founder of Apple Computer. It was rather a picture than a logo. It showed Sir Isaac Newton sitting beneath the famous Apple tree thinking about gravity. [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 西班牙...
objects to fall to the ground. (The story that Newton was inspiredby an apple hitting his head is almost certainly apocryphal. All Newton himself ever said was that the idea ofgravity came to him as he sat “in a contemplative mood” and “was occasioned by the fall of an apple.”) N...
Reduced mass is calculated from the mass of both objects multiplied together, then divided by the sum of the mass of the two objects. The result can then be used to calculate force and gravity effects as though there was a single mass at a point called the center of rotation. An example...
When it is launched, the inertia helps it move upwards, against gravity, but eventually gravity's pull becomes too strong, and the object starts to loop back to Earth. The object has also been traveling horizontally, however, so the path of the object creates an arc. Eventually, the ...
The curved vertical motion of a body is called projectile motion. This motion is under the force of gravity and is of two dimensional. At the initial point, the velocity is only horizontal, but it has two component after some time.