Barbara travels 20. km Northward, then travels 40. km Eastward, then continues for 50. km in a Southward direction. What displacement will now take her back to her initial position?

Question

Quizplus · Accepted Answer

To return to her initial position, Barbara must counteract her previous movements: she moved 40 km East, so she needs to move 40 km West. She moved 20 km North and 50 km South, resulting in a net 30 km South, so she needs to move 30 km North.

Barbara Travels 20