Because according to Kepler's laws the orbital speed of a planet is proportional to the square root of the reciprocal of the distance:
v = d-½.
According to http://solarsystem.nasa.gov/planets/, Venus has an orbital velocity of 78,341 mph, and Neptune's is 12,253 mph...
The orbital speed of the planets prevent this. The planet's ARE all failing towards the Sun but their horizontal speed means they always miss.
The orbital speeds are higher when closer to the sun, but slower and more similar as you move out. The two that are closest in speed are Uranus and Neptune. Uranus at 6.8352 km/sec and Neptune at 5.4778 km/sec.
average orbital speed of 9.69km/s
Orbital velocity refers to the speed at which a planet travels in its orbit.
earth orbital speed is 30 kilometers per second!!
venus
there is no answer people sorry!!
The ones closest to the Sun.
The Earth moves faster than the planets that are farther from the Sun.
According to http://solarsystem.nasa.gov/planets/, Venus has an orbital velocity of 78,341 mph, and Neptune's is 12,253 mph...
It varies: The planets closer to the Sun move faster (Kepler's Third Law). Mercury is fastest; according to Wikipedia, its average orbital speed is 47.87 km/s. Multiply that by 0.6 to get the approximate speed in miles per second.
As it increases, the orbital speed increases, and the period (time to complete an orbit) decreases, which is why Mercury has the shortest year, and Neptune the slowest orbital speed.
Jupiter, and planets further away from the Sun than Jupiter.
Of the major planets, Neptune. The speed of planets in their orbits is directly related to their distance from the sun. The farther a planet is from the Sun, the slower its orbital speed.
The orbital speed of the planets prevent this. The planet's ARE all failing towards the Sun but their horizontal speed means they always miss.
The orbital speed of the planets prevent this. The planet's ARE all failing towards the Sun but their horizontal speed means they always miss.