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Circular Motion — Physics Questions & Practice

851 Circular Motion questions from Physics for competitive exams such as UPSC, Banking, SSC and Railway. Read the worked questions below, check every answer with an explanation, and track what you get wrong. का अभ्यास करें

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Circular Motion पर अभ्यास प्रश्न — उत्तर सहित

Try each question first, then open the answer. Explanations are included.

1. An object of mass 3 kg moves in a circular path of radius 2 m at a speed of 5 m/s. What is the centripetal force acting on it? (F = mv^2/r)

  1. A37.5
  2. B32.5
  3. C28.296
  4. D45.609
उत्तर दिखाएँ

उत्तर: A

Centripetal force F = mv^2/r = (3 x 5^2)/2 = (3 x 25)/2 = 37.5 N.

2. An object of mass 2 kg moves in a circular path of radius 8 m at a speed of 18 m/s. What is the centripetal force acting on it? (F = mv^2/r)

  1. A84.629
  2. B96.607
  3. C81
  4. D85.186
उत्तर दिखाएँ

उत्तर: C

Centripetal force F = mv^2/r = (2 x 18^2)/8 = (2 x 324)/8 = 81 N.

3. An object moves in a circular path of radius 1 m at a speed of 23 m/s. What is its centripetal acceleration? (a = v^2/r)

  1. A519
  2. B634.256
  3. C529
  4. D518.572
उत्तर दिखाएँ

उत्तर: C

Centripetal acceleration a = v^2/r = 23^2/1 = 529/1 = 529 m/s^2.

4. An object of mass 4 kg moves in a circular path of radius 5 m at a speed of 5 m/s. What is the centripetal force acting on it? (F = mv^2/r)

  1. A24.896
  2. B15
  3. C18.631
  4. D20
उत्तर दिखाएँ

उत्तर: D

Centripetal force F = mv^2/r = (4 x 5^2)/5 = (4 x 25)/5 = 20 N.

5. An object of mass 3 kg moves in a circular path of radius 9 m at a speed of 11 m/s. What is the centripetal force acting on it? (F = mv^2/r)

  1. A40.333
  2. B39.531
  3. C33.603
  4. D46.844
उत्तर दिखाएँ

उत्तर: A

Centripetal force F = mv^2/r = (3 x 11^2)/9 = (3 x 121)/9 = 40.333 N.

Circular Motion और प्रश्न हल करें

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