A particle moves in a circular path with a radius of 15 m and completes one revo

Practice Questions

Q1
A particle moves in a circular path with a radius of 15 m and completes one revolution in 10 seconds. What is the linear speed of the particle?
  1. 1.5 m/s
  2. 3 m/s
  3. 6 m/s
  4. 9 m/s

Questions & Step-by-Step Solutions

A particle moves in a circular path with a radius of 15 m and completes one revolution in 10 seconds. What is the linear speed of the particle?
  • Step 1: Identify the radius of the circular path, which is given as 15 meters.
  • Step 2: Identify the time taken to complete one full revolution, which is given as 10 seconds.
  • Step 3: Use the formula for linear speed, which is v = 2πr/T.
  • Step 4: Substitute the values into the formula: v = 2π(15 m)/10 s.
  • Step 5: Calculate the circumference of the circle: 2π(15 m) = 30π m.
  • Step 6: Divide the circumference by the time: 30π m / 10 s = 3π m/s.
  • Step 7: Approximate π as 3.14 to find the numerical value: 3 * 3.14 = 9.42 m/s.
  • Step 8: Conclude that the linear speed of the particle is approximately 9.42 m/s.
  • Circular Motion – The motion of a particle along a circular path, where linear speed can be calculated using the formula v = 2πr/T.
  • Linear Speed – The distance traveled per unit of time along the circular path, calculated as the circumference of the circle divided by the period.
  • Period of Revolution – The time taken to complete one full revolution around the circular path.
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