Question

At what speed does the earth travel on its orbit around the sun?

Answer 1

The Earth moves at a little over 100,000 km/hr in its orbit around the sun.

Explanation:

The Earth is in a roughly circular orbit with a radius of 149,597,871 km.
The circumference of the orbit is `2*pi*r` or 939,951,145 km. Since the Earth completes the orbit in one year (365.25 days, or 8766 hours), the speed is 107,227 km/hr, or 66,628 mph.