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Indian Navy SSR (Sailor) Motion in a Plane — practice questions

Explore 4 free Motion in a Plane questions in Indian Navy SSR (Sailor) Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Motion in a Plane questions and exercises with answers

Showing questions 1–4 of 4.

As per your syllabus, the boy should hold his umbrella at approximately which angle to the vertical?Read the answer and worked solution →As per your syllabus, the relation between linear speed v, angular speed ω, and radius R in UCM is which?Read the answer and worked solution →As per your syllabus, eqn 3.47, the relation between angular speed ω, period T, and frequency ν is which?Read the answer and worked solution →As per your syllabus, the direction of the VELOCITY vector at any point on the circular path in UCM is which?Read the answer and worked solution →

Worked practice questions

As per your syllabus, the boy should hold his umbrella at approximately which angle to the vertical?

  1. 19° toward east
  2. 45° toward east
  3. 19° toward west
  4. 30° toward east
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Correct answer: A. 19° toward east

syllabus Ex 3.1: tan θ = 12/35 = 0.343 → θ = 19°. Wind blows east-to-west, so umbrella tilts towards the east.

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As per your syllabus, the relation between linear speed v, angular speed ω, and radius R in UCM is which?

  1. v = R / ω
  2. v = R² ω
  3. v = ω / R
  4. v = R ω
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Correct answer: D. v = R ω

syllabus eqn 3.45: v = Rω (arc length per unit time = radius × angular displacement per unit time).

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As per your syllabus, eqn 3.47, the relation between angular speed ω, period T, and frequency ν is which?

  1. ω = ν / T only
  2. ω = 2π/T = 2πν
  3. ω = π ν T only
  4. ω = T/(2π) only
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Correct answer: B. ω = 2π/T = 2πν

syllabus eqn 3.47: ω = 2π / T = 2π ν. Period T = 1/ν.

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