7 ms·
A lot depends on the initial velocity and angle of impact. Considering that the earths atmosphere isn’t much more than 100km thick, and a meteor could in theor
by mr_toad 5y ago
A lot depends on the initial velocity and angle of impact.
Considering that the earths atmosphere isn’t much more than 100km thick, and a meteor could in theory come in head-on with an initial velocity of 70km per second, there isn’t going to much time for it to slow down.
- bagels 5y ago70km/s is interstellar material
- haimez 5y agoBased on some quick googling (not an expert in the related physics like some sibling commenters seem to be), earth’s orbital velocity around the sun is ~30km/s and the sun’s orbital velocity around the center of the galaxy is 250km/s
- MauranKilom 5y agoAir resistance is to first approximation quadratic with velocity. High initial velocities lead to very high braking force, so it wouldn't have 70 km/s for very long. Also see surrounding comments for more related physics.