Problem 3. A fish swimming in a horizontal plane has velocity vi = (4x + ŷ) m/s at a point in the ocean where the position vector relative to a

rock is ri = (10x – 4ý) m. After the fish swims with a constant acceleration for 20 s, its final velocity is ī = (20x – 5ŷ) m/s. (a) What are the components of its acceleration? (b) What is the direction of its acceleration with respect to the unit vector £?(c) Determine the displacement of the fish at t = 20 s.