A particle moves in a circular path with a constant speed. Which of the followin

Practice Questions

Q1
A particle moves in a circular path with a constant speed. Which of the following statements is true?
  1. The particle has zero acceleration
  2. The particle has constant acceleration
  3. The particle has centripetal acceleration
  4. The particle's velocity is constant

Questions & Step-by-Step Solutions

A particle moves in a circular path with a constant speed. Which of the following statements is true?
  • Step 1: Understand that a particle moving in a circular path is always changing direction.
  • Step 2: Recognize that even if the speed is constant, the change in direction means the particle is accelerating.
  • Step 3: Identify that this type of acceleration, which occurs when an object moves in a circle, is called centripetal acceleration.
  • Step 4: Note that centripetal acceleration always points towards the center of the circle.
  • Centripetal Acceleration – Centripetal acceleration is the acceleration that keeps an object moving in a circular path, directed towards the center of the circle.
  • Constant Speed vs. Acceleration – An object can move at a constant speed while still experiencing acceleration if its direction is changing, as in circular motion.
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