1. The problem statement, all variables and given/known data A bit of asteroid material of mass 2.5 x 10^6 kg orbits around the earth at an altitude of 2800km. How long does it take the asteroid to complete one orbit. M asteroid = 2.5 x 10^6 kg altitude of asteroid = 2800 km radius asteroid = 200m radius earth = 6.37 x 10^6 m 2. Relevant equations Fnet = mv^2/r C = 2∏r t = d/v 3. The attempt at a solution r = rEarth + rAsteroid + altitude r = 9.2 x 10^6 m C = 2∏r C = 5.78 x 10^7 C = d Fg = mv^2/r mg = mv^2/r 9.8 = v^2/r 9.8 (9.2 x 10^6) = v^2 v = 9500 m/s t = d / v t = 5.78 x 10^7 / 9500 t = 6084 s t = 1.7 h My friend got 0.29 and the teacher had told him he was right. I didn't have a chance to see what I did wrong so I'm wondering if anyone here can tell me where I made my mistake.