For each of the three pairs of positions listed in the following table, determine the magnitude and direction (positive or negative) of the displacement. Initial position X Final position r +1.9m +5.7m (b) +5.5m +2.1m (c) -2.7m +6.9m (a) Displacement = Number i Units (b) Displacement = Number i Units (c) Displacement = Number i UnitsDue to continental drift, the North American and European continents are drifting apart at an average speed of about 3 cm per year. At this speed, how long (in years) will it take for them to drift apart by another 546.8 m? Number i Units