1. The problem statement, all variables and given/known data Consider a 3 kg object moving in a 2.5 m radius circle at 5.7 m/s to answer the next 2 questions. 4. How much force is required to keep the object moving in the circle? 1.3 N 3.3 N 39 N 6.8 N 5. What is the acceleration of the object? 13 m/s2 39 m/s2 6.8 m/s2 2.3 m/s2 2. Relevant equations For the first one: F=m*a a=(v^2)/r = (5.7^2)/2.5 = 12.9996 thus, F=3*12.9996 = 38.988N 3. The attempt at a solution I think I got the first one. Is that one the right answer? I can't figure out the second one though. Thanks for your help!