An aeroplane 400 m north and 300 m south and then flies 1200 m upwards then net displacement is
Correct answer: D. 1204 m
- A. 1200 m
- B. 1300 m
- C. 1400 m
- D. 1204 m
Explanation
To find the net displacement, first calculate the resultant north-south movement: 400 m north - 300 m south = 100 m north. Next, use the Pythagorean theorem to find the total displacement by combining this northward movement with the upward movement: r = √[(100)^2 + (1200)^2] = √[10000 + 1440000] = √1450000 = 1204 m. This means the net displacement is approximately 1204 m. The other options either ignore the northward movement or miscalculate the resultant displacement.
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