An airplane flies \(400 \mathrm{~m}\) north and \(300 \mathrm{~m}\) south and flies \(1200 \mathrm{~m}\)…

An airplane flies \(400 \mathrm{~m}\) north and \(300 \mathrm{~m}\) south and flies \(1200 \mathrm{~m}\) upwards, then net displacement is
  1. \(1400 \mathrm{~m}\)
  2. \(1500 \mathrm{~m}\)
  3. \(1200 \mathrm{~m}\)
  4. \(1100 \mathrm{~m}\)

Solution

The various displacements of airplane is shown below
Net displacement travelled by airplane, \(\begin{aligned} d & =\sqrt{100^2+1200^2}=\sqrt{1450000} \\ & =1204.16 \mathrm{~m} \simeq 1200 \mathrm{~m} \end{aligned}\)

Asked in: AP EAMCET 2020 (17 Sep Shift 1)

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