A vector is a mathematical construct that has magnitude and direction. The cross product of two vectors is a binary operation in three-dimensional space that results in a third vector that is ...
In the present situation, both Earth and Mars are moving in the same direction around the Sun, but the slower one, Mars, appears to move backwards compared to the faster one, Earth. Just an illusion. The retrograde motion of Mars â like the apparent motion of the slower car on the highway â is nothing more than an illusion.
The Earth has a rotation time of about 23 hours and 56 minutes. Mars has a rotation period of about 24 hours and 37 minutes. So Mars rotates in roughly the same time as Earth.+ 24 others found this useful. One exception is Uranus, which is tilted on its side so that it spins as if rollin â¦ g along its orbit. At two points in its orbit, one of its poles points almost directly toward the Sun. Each pole experiences 42 Earth years of daylight and 42 Earth years of night during the longer Uranus year.