Multiple Choice
Four successive displacements of 4 km, 5 km, 4 km, and 2 km are at right angles to each other as shown in the diagram. 
The magnitude of the resultant displacement is
A) 4 km.
B) 15 km.
C) 3 km.
D) -5 km.
E) -15 km.
Correct Answer:
Verified
Correct Answer:
Verified
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