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NEET 2026 · Inertia, First & Second Laws

Inertia, First & Second Laws question from NEET 2026

Q1NEET 2026Easy

Inertia, First & Second Laws

The magnitude and direction of the acceleration produced in a body of mass 5 kg when two mutually perpendicular forces 8 N and 6 N act on it, are respectively:

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Answer: (d)

  1. Resultant R=82+62=10 NR = \sqrt{8^2 + 6^2} = 10\text{ N}, so a=105=2 m s−2a = \frac{10}{5} = 2\text{ m s}^{-2}.
  2. Angle with the 8 N force: tan⁡θ=68=34\tan\theta = \frac{6}{8} = \frac{3}{4}.
  3. So the answer is (d) 2 m s−2; tan⁡−1(3/4)2\text{ m s}^{-2};\ \tan^{-1}(3/4) with 8 N force.
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