12.[T] A motorboat travelling 6 mfs, East encounters a water current traveling 3.8 mfs, South. Answer the following with the relevant vector diagram.[T 9 marks, C 3 marks] a. What is the resultant velocity of the motor boat? [T - 3 marks, C 1 mark] b. If the width of the river is 120 m wide, then how much time does it take for the boat to travel shore to shore? [T 3 marks, C 1 mark] c. What distance downstream does the boat reach the opposite shore? [T 3 marks; C 1 mark]