A pendulum swings with a period of 1.5 seconds. What is the angular frequency of

Practice Questions

Q1
A pendulum swings with a period of 1.5 seconds. What is the angular frequency of the pendulum?
  1. 2π/1.5 rad/s
  2. 4π/3 rad/s
  3. π/1.5 rad/s
  4. 3π/2 rad/s

Questions & Step-by-Step Solutions

A pendulum swings with a period of 1.5 seconds. What is the angular frequency of the pendulum?
  • Step 1: Understand that the period (T) of a pendulum is the time it takes to complete one full swing back and forth.
  • Step 2: Identify the given period of the pendulum, which is 1.5 seconds.
  • Step 3: Know the formula for angular frequency (ω), which is ω = 2π/T.
  • Step 4: Substitute the value of T into the formula: ω = 2π/1.5.
  • Step 5: Simplify the fraction: 2π/1.5 is the same as (2π * 2)/(3) = 4π/3.
  • Step 6: Write the final answer: The angular frequency of the pendulum is 4π/3 rad/s.
  • Angular Frequency – Angular frequency (ω) is the rate of rotation or oscillation, calculated as ω = 2π/T, where T is the period of the motion.
  • Period of a Pendulum – The period is the time taken for one complete cycle of motion, which is crucial for calculating angular frequency.
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