You walk east and then north. What is your total displacement?
A) 3km
B) 4km
C) 5km
D) 7km

Question

Quizplus · Accepted Answer

The total displacement is the straight-line distance between your starting point and your final destination. Using the Pythagorean theorem, we can calculate that the displacement is the square root of (2^2 + 3^2), which is equal to the square root of 13. This is closest to 3.6km, which rounds to 5km, making the answer C.

You Walk East and Then North