The earth spins around at the equator at a speed of roughly 900 miles per hour.
360degrees/24hours x 60 miles/degree = 900 Miles /hour.
Also, with a circumference of 24,000 miles covered in 24 hours yields 1,000 miles per hour.
Here is another answer I found: How fast does the earth spin? The speed at which the earth spins varies upon your latitudinal location on the planet. If you're standing at the north pole, the speed is almost zero but at the equator, where the circumference of the earth is greatest, the speed is about 1,038 miles per hour (1,670 kph). The mid-latitudes of the U.S. and Europe speed along at 700 to 900 mph (1125 to 1450 kph).
fast.
600 kph = 372.8 mph
Faster than 58 kph.
Orbital velocity is about 27,358 KPH or 17,000 MPH. If space junk is going less than that fast it will fall back to Earth. If the junk was part of an interplanetary mission it is going away from Earth at more 40,233 KPH or 25,000 MPH.
175*1.6=280 kph
211 mph = 339.57 kph
98 kph = 60.9 mph
40,000 kph = 24,854.85 mph
112 kph are equal to 69.6 mph
275 kph = about 170.877 mph
75 mph = 120.7 kph