CASE 1. A and B are both driving in the same direction along a freeway A's car speedometer reads 55 mph while B's speedometer shows 60 mph. A. Use formula and solution to prove or disprove that: (Rubric 5 x 3 = 15 marks} (1] 50 mph is thetrue speed of B. (2) 8'5 speed relative to A is only 5 mph (3) 3'5 speed is 120 mph relative to a driver approaching from the other direction at 60 mph B. Conceptual symbols (Point system, 10 marks) C. Analysis of the case (Rubric 5 x 3 = 15 marks) (1) True speed and velocity (2} Formula and analysis to define velocity (3) Object's velocity relative to or with respect to, the coordinate system in which it is measured