Arvin the Ant is on a picnic table.He travels 30 cm eastward,then 25 cm northward,and finally 15 cm westward.What is the magnitude of Arvin's net displacement?
A)70 cm
B)57 cm
C)52 cm
D)29 cm

Question

Quizplus · Accepted Answer

Arvin's net displacement can be found using the Pythagorean theorem. He ends up 15 cm east (30 cm east - 15 cm west) and 25 cm north. The net displacement is the hypotenuse of a right triangle with these sides: √(15² + 25²) = √(225 + 625) = √850 ≈ 29 cm.

Arvin the Ant Is on a Picnic Table