Re: Puzzling young Mars meteorite ages.
Mars
Rotational period (hours) 24.6229
Equatorial radius (km) 3,397.2
Equatorial escape velocity (km/sec) 5.02
Earth
Rotational period (hours) 23.9345
Equatorial radius (km) 6,378.14
Equatorial escape velocity (km/sec) 11.18
Mars: equatorial circumference: 21345 km
Spinning at 866.88 km/hr (.24 km/sec)
Earth: equatorial circumference: 40075
Spinning at 1674.36 km/hr (.46 km/sec)
Earth spin speed is .042 of escape velocity
Mars spin speed is .048 of escape velocity
