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A wheel rotates with a constant angular acceleration α. If its initial angular v

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Question: A wheel rotates with a constant angular acceleration α. If its initial angular velocity is ω₀, what is its angular velocity after time t? (2023)

Options:

  1. ω₀ + αt
  2. ω₀ - αt
  3. αt²
  4. ω₀t

Correct Answer: ω₀ + αt

Solution:

Using the equation of motion for rotation, ω = ω₀ + αt.

A wheel rotates with a constant angular acceleration α. If its initial angular v

Practice Questions

Q1
A wheel rotates with a constant angular acceleration α. If its initial angular velocity is ω₀, what is its angular velocity after time t? (2023)
  1. ω₀ + αt
  2. ω₀ - αt
  3. αt²
  4. ω₀t

Questions & Step-by-Step Solutions

A wheel rotates with a constant angular acceleration α. If its initial angular velocity is ω₀, what is its angular velocity after time t? (2023)
  • Step 1: Identify the initial angular velocity (ω₀). This is the speed at which the wheel starts rotating.
  • Step 2: Identify the constant angular acceleration (α). This is how much the angular velocity increases every second.
  • Step 3: Identify the time (t) for which the wheel has been rotating.
  • Step 4: Use the formula for angular velocity: ω = ω₀ + αt. This formula tells you how to calculate the new angular velocity after time t.
  • Step 5: Plug in the values of ω₀, α, and t into the formula to find the new angular velocity (ω).
  • Angular Motion – The study of rotational motion, including concepts like angular velocity, angular acceleration, and the equations of motion for rotating bodies.
  • Equations of Motion – The equations that describe the relationship between angular displacement, angular velocity, angular acceleration, and time.
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