1. The problem statement, all variables and given/known data A particle moves along a circular path over a horizontal xy plane at a constant speed. At time t1= 3.00s, its acceleration vector is given by (3i-5j) m/s^2. At time t2=7.00 s, its acceleration is given by (-3i+5j) m/s^2. Find the radius of the particle's circular path. 2. Relevant equations centripetal acceleration = v^2/r 3. The attempt at a solution Stumbling around for about an hour with no clue what to do... left me with nothing to show for.