Which of the following cannot be used to represent a vector? * Letter in uppercase and in bold face Letter with an arrowhead on top A ray Letter in lowercase Victor's average running speed is 1 meter every minute. He traveled for 2 minutes due East and 2 minutes due west. Which among the following statements is FALSE? Victor's magnitude of velocity is equal to her speed in both directions. Victor's back-and-forth movement can be represented by parallel vectors. Victor will cover an equal amount of distance towards East and towards West. Victor's back-and-forth movement can be represented by antiparallel vectors. Which of the following situations involves a vector quantity? * Lilia measuring her mass with a weighing scale Leon measuring the height of his pet dog. A car moving at 50 km/h due East of the racetrack. O A kettle with boiling water inside. What mathematical concept should we use to solve for the coordinates of a vector given its magnitude and direction? Sine Law Trigonometric Ratios Cosine Law O Pythagorean Theorem