- #1
Sab95
- 5
- 0
I read in a article that Earth revolves around the sun at speed of 30km/s but from where did it get its velocity at the beginning..?
The initial velocity of the earth was approximately 29.78 km/s, which is the orbital speed around the sun. This speed is a result of the gravitational pull between the earth and the sun.
The earth acquired its initial velocity through the process of accretion during its formation. As dust and debris in the early solar system collided and stuck together, the earth began to gain mass and its gravitational pull increased, resulting in its initial velocity.
No, the earth's initial velocity has changed over time due to various factors such as the gravitational pull of other planets, the moon, and the sun. Additionally, the earth's orbit around the sun is not perfectly circular, causing its velocity to fluctuate slightly.
The initial velocity of the earth plays a crucial role in its orbit around the sun. If the initial velocity were too slow, the earth would fall towards the sun due to its gravitational pull. On the other hand, if the initial velocity were too fast, the earth would escape the sun's gravitational pull and drift into outer space.
Yes, the earth's initial velocity can change in the future due to various factors such as collisions with other celestial bodies, gravitational interactions, and even human activities such as space missions. However, any changes in the earth's initial velocity are expected to be very small and not significant enough to significantly alter its orbit around the sun.