1. The problem statement, all variables and given/known data The earth travels around the sun in a circle of radius 150 million km and does a complete cycle in about 365 days. Find its speed. 2. Relevant equations v= d/t 3. The attempt at a solution d = 1000m/1km x 150,000,000km = 1.5 x 10^11m There are 31,536,000 seconds in 1year. v = 1.5 x 10^11/31,536,000 = 4.7 x 10^18 they say this is wrong answer and the right answer is actually 29 800 m/s. Please help? Thank you.