please provide answers without photo another I gave you dislike

Let us consider the case when this corner is rounded by a circular are, as seen in the following figure. v (m/s) A 20(2 - V2) 10 10(3 - V2) 20 30 t (s) a) Find the total distance traveled by the object, from t = 0s until / = 30s. b) Determine the acceleration as function of time and sketch its graph. You can use calculus for this, but you don't need to. This can be solved only with geometry