WBCS.LIVE practice question

A particle is moving in a uniform circular motion with constant speed V along a circle of radius r. The acceleration of the particle is

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Zero
  2. V / r
  3. V / r²
  4. V² / r

Correct answer and explanation

Correct answer: V² / r

Explanation: ✅ Correct Answer: D. V² / r 📚 Explanation: In a uniform circular motion, a particle experiences a centripetal acceleration directed toward the center of the circle. This acceleration is calculated using the formula a = V² / r. Even though the speed is constant, the direction of the velocity is constantly changing, which results in acceleration. This is a fundamental principle of classical mechanics.