Respuesta :
answer.
earth
explane.
the Earth is always fastest because the is always rolling
Answer:
Mercury
Explanation:
Mercury is the fastest planet, which speeds around the sun at 47.87 km/s. In miles per hour this equates to a whopping 107,082 miles per hour. 2. Venuses the second fastest planet with an orbital speed of 35.02 km/s, or 78,337 miles per hour.