an artificial satelite is orbiting around earth at a constant height what is newtons law of motion
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an artificial satelite is orbiting around earth at a constant height what is newtons law of motion
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Isaac Newton conducted many experiments dealing with gravity and the earth. In this experiment, Newton decided to test how the earth's gravitational force would affect a cannonball if it was fired from a high mountain at the North Pole. He tested on different angles and different speeds and saw how it would affect the trajectory. Newton's hypothesis was that if a cannon ball was fired at exactly the right height, angle, and speed, that it would eventually make it's way around the earth without falling back and just keep orbiting the earth. Some other hypotheses were made about the cannon ball if it was not shot at all the right measurements. One idea was that if the ball was shot at a slow speed, it would simply fall back to earth, another was "If the speed is the orbital velocity at that altitude it will go on circling around the Earth along a fixed circular orbit just like the moon." More hypotheses he came up with were "If the speed is higher than the orbital velocity, but not as high as the escape velocity, it will continue go around Earth in an elliptical orbit." and also if the ball was shot at a high speed it would simply leave earth's gravitational pull. Newton's ideas and experiments came to life when the earth's first artificial satellite, Sputnik, was launched on October 4th, 1957. This made a huge impact on future gravitational research because satellites are now used for a variety of things, including most forms of communication, military defense and controls, monitoring environments, and also scientific investigations!