During a one-hour trip, a small boat travels 80.0 km north and then travels 60.0 km east.
-What is the boat's displacement for the one-hour trip?
A)20 km
B)100 km
C)140 km
D)280 km
E)10 000 km

Question

Quizplus · Accepted Answer

The boat's displacement is the straight-line distance from the starting point to the final position. Using the Pythagorean theorem, the displacement is √(80^2 + 60^2) = √(6400 + 3600) = √10000 = 100 km.

During a One-Hour Trip, a Small Boat Travels 80