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Indian Navy INET Motion in a Plane — practice questions

Explore 2 free Motion in a Plane questions in Indian Navy INET 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 1–2 of 2.

As per your syllabus, eqn 3.13, the x-component of a vector A of magnitude A making angle θ with the x-axis is which?Read the answer and worked solution →As per your syllabus, the direction of the centripetal acceleration vector is always which?Read the answer and worked solution →

Worked practice questions

As per your syllabus, eqn 3.13, the x-component of a vector A of magnitude A making angle θ with the x-axis is which?

  1. A sin θ
  2. A² cos θ
  3. A cos θ
  4. A tan θ
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Correct answer: C. A cos θ

syllabus eqn 3.13: A_x = A cos θ. Similarly A_y = A sin θ.

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As per your syllabus, the direction of the centripetal acceleration vector is always which?

  1. Along velocity
  2. Toward the centre
  3. Outward radially
  4. Tangent to circle
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Correct answer: B. Toward the centre

Your syllabus: a_c points along -r̂ (centre-seeking). Newton coined 'centripetal'; Huygens analysed it (1673).

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