What is causing the orbital velocity of object A to be increasing?
Inertia of the moving body tends to make it move on in a straight line, while gravitational force tends to pull it down. The more massive the body at the centre of attraction, the higher is the orbital velocity for a particular altitude or distance.
What is Mercury’s velocity?
about 48 km/s
What is Mercury’s rotation?
Mercury spins slowly on its axis and completes one rotation every 59 Earth days. But when Mercury is moving fastest in its elliptical orbit around the Sun (and it is closest to the Sun), each rotation is not accompanied by a sunrise and sunset like it is on most other planets.
What does orbital speed depend on?
The mean orbital speed of the object depends only on the Earth’s mass and the semi-major axis (half the longest diameter) of the object’s orbit. However, the orbital speed changes depending on where in the orbit the object is. It will be greatest when closest to Earth and least when furthest from Earth.
What is the relationship between a planet’s orbital radius and period?
Kepler’s Third Law: the squares of the orbital periods of the planets are directly proportional to the cubes of the semi major axes of their orbits. Kepler’s Third Law implies that the period for a planet to orbit the Sun increases rapidly with the radius of its orbit.
What is the orbital radius of Earth in meters?
Question: The radius of the earth’s orbit around the sun (assumed to be circular) is 1.50×108 km 1.50 × 10 8 k m , and the earth travels around this orbit in 365 days.
How does the radius affect orbital speed?
As seen in the equation v = SQRT(G * Mcentral / R), the mass of the central body (earth) and the radius of the orbit affect orbital speed. The orbital radius is in turn dependent upon the height of the satellite above the earth. For each case, use the equation T2/ R3= 4*pi2 / (G*Mcentral).
What happens to time period of satellite of orbital radius is doubled?
Answer. so if orbital radius of planet is doubled then it’s time period becomes 2√2 of the previous time period.
Are mass and orbital period related?
1 Answer. An increase in the mass of he orbited body causes a decrease in the orbital period.