My Learning Cart
?
Categories
Account

A flywheel is a device used to store rotational energy. If the moment of inertia

₹0.0
Login to Download
  • 📥 Instant PDF Download
  • ♾ Lifetime Access
  • 🛡 Secure & Original Content

What’s inside this PDF?

Question: A flywheel is a device used to store rotational energy. If the moment of inertia of the flywheel is I and it rotates with an angular velocity ω, what is its rotational kinetic energy? (2020)

Options:

  1. (1/2)Iω^2
  2. (1/4)Iω^2
  3. (1/3)Iω^2
  4. (1/5)Iω^2

Correct Answer: (1/2)Iω^2

Exam Year: 2020

Solution: 

The rotational kinetic energy is given by K.E. = (1/2)Iω^2.

A flywheel is a device used to store rotational energy. If the moment of inertia

Practice Questions

Q1
A flywheel is a device used to store rotational energy. If the moment of inertia of the flywheel is I and it rotates with an angular velocity ω, what is its rotational kinetic energy? (2020)
  1. (1/2)Iω^2
  2. (1/4)Iω^2
  3. (1/3)Iω^2
  4. (1/5)Iω^2

Questions & Step-by-Step Solutions

A flywheel is a device used to store rotational energy. If the moment of inertia of the flywheel is I and it rotates with an angular velocity ω, what is its rotational kinetic energy? (2020)
  • Step 1: Understand that a flywheel stores energy by rotating.
  • Step 2: Know that the moment of inertia (I) is a measure of how much mass is distributed in the flywheel.
  • Step 3: Recognize that angular velocity (ω) is how fast the flywheel is spinning.
  • Step 4: Learn the formula for rotational kinetic energy, which is K.E. = (1/2)Iω^2.
  • Step 5: Plug in the values of I (moment of inertia) and ω (angular velocity) into the formula to find the rotational kinetic energy.
  • Rotational Kinetic Energy – The energy possessed by an object due to its rotation, calculated using the formula K.E. = (1/2)Iω^2, where I is the moment of inertia and ω is the angular velocity.
  • Moment of Inertia – A measure of an object's resistance to changes in its rotation, dependent on the mass distribution relative to the axis of rotation.
  • Angular Velocity – The rate of rotation of an object, typically measured in radians per second.
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely
Home Practice Performance eBooks