A car travels 50 km north and then 30 km south. The DISPLACEMENT is:
A80 km south
B20 km south
C80 km north
D20 km north
Answer & Solution
Correct answer: D. 20 km north
Displacement = final position − initial position. Net result: 50 km north then 30 km south = 50 − 30 = 20 km north from start. (Distance travelled would be 50 + 30 = 80 km — the total path length.)
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