Best answer:
Man made satellites are similar the moon. The moon orbits the earth in four weeks. To move around a circle at a constant speed, there must be centripetal force. In physics, this force is called the Universal gravitational force. For the moon or a satellite to orbit the earth, these two forces must be equal.
Fc = m...
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Best answer: Man made satellites are similar the moon. The moon orbits the earth in four weeks. To move around a circle at a constant speed, there must be centripetal force. In physics, this force is called the Universal gravitational force. For the moon or a satellite to orbit the earth, these two forces must be equal.
Fc = m * v^2 ÷ r
Fg = G * M * m ÷ r^2
m * v^2 ÷ r = G * M * m ÷ r^2
v = √(G * M ÷ r)
This equation can be used to determine the magnitude of the velocity of the moon or satellite. To illustrate how this works, I will use the radius of the moon’s orbit. This is 6.96 *10^8 meters. The mass of earth is 5.98 * 10^24 kg.
https://en.wikipedia.org/wiki/Orbit_of_t...
According to the website above, the radius of the moon’s orbit is 385, 000 km. This is 3.85 * 10^8 meters. Let’s use this number in the velocity equation.
v = √(6.67 * 10^-11 * 5.98 * 10^24 ÷ 3.85 * 10^8)
v = √(3.98866 * 10^14 ÷ 3.85 * 10^8)
The velocity of moon is approximately 1,108 m/s. Sorry about my previous mistake.