Final answer:
The resultant vector of two vectors, one with a magnitude of 589 km/hr and the other 134 km/hr, acting in opposite directions is 455 km/hr in the direction of the larger vector.
Step-by-step explanation:
The student asks to calculate the resultant vector of two vectors where one vector has a magnitude of 589 km/hr and the other has a magnitude of 134 km/hr, acting in opposite directions. Since vectors represent quantities with both magnitude and direction, when two vectors are opposite in direction, their magnitudes subtract when determining the resultant vector. Therefore, to find the resultant vector, you subtract the smaller vector from the larger vector: 589 km/hr - 134 km/hr = 455 km/hr. This resultant vector is in the same direction as the larger of the two original vectors.