I've come back once more with a question. -A hawk is flying along a horizontal arc (the path it takes is similar to a semicircle), in which the radius is 12.0m and the tangential acceleration is 1.20 m/s^2. All that has to be found is the net acceleration. -I know that the centripetal acceleration is constant (otherwise it most likely wouldn't be a circle) and the tangential acceleration is constant. So the the centripetal acceleration and tangential acceleration must be components of the net acceleration. How would I solve for the centripetal acceleration?