PLEASE HELP ME! A hockey puck travels a displacement of 4.2 m [S38°W]. It is then struck by a hockey player's stick and undergoes a displacement of 2.7 m [E25°N]. What is the puck's total displacement?

Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.