Question

a vehicle travels 57 kilometers north and then travels 26 kilometers south. what is the current position of the vehicle?
83 kilometers south from its starting location
83 kilometers north of its starting location
31 kilometers south of its starting location
31 kilometers north of its starting location

Explanation:

Step1: Define direction values

Let north = positive, south = negative.

Step2: Calculate net displacement

$\text{Net displacement} = 57 + (-26) = 31$ kilometers

Step3: Interpret direction

Positive value means north of start.

Answer:

31 kilometers north of its starting location