The discussion centers on the combination of Earth's rotational and inertial velocities. Earth's angular velocity is approximately 0.00007 rad/s, while its tangential velocity at the equator is about 0.5 km/s. When considering an inertial frame moving at 400 km/s, the resultant velocity of Earth must be calculated using vector addition, taking into account the varying direction of tangential velocity at different points on the planet.
PREREQUISITESPhysics students, aerospace engineers, and anyone interested in the dynamics of rotational motion and inertial frames.
I think that you mean "huge tangential velocity". The angular velocity is not huge, it is 0.00007 1/s. The tangential velocity is about 0.5 km/s at the equator, which may or may not be "huge" depending on the context.johnny_bohnny said:Earth has a huge angular velocity regarding its rotation.
Velocities add vectorially. Don't forget that the tangential velocity is pointing in a different direction at each point on the earth, so you can do this addition for each point on the Earth and you will get a different value.johnny_bohnny said:What will be the velocity of Earth when we take the rotation into account combined with inertial motion? How do the 2 combine?