Angular momentum

Question 1

What is the definition of angular momentum, moment of inertia and angular velocity?

What is the equation?

Answer 1

Angular momentum = an object’s motion around an axis
Moment of inertia = the resistance of an object to change its state when rotating
Angular velocity = the rate of movement in rotation
Angular momentum = Angular momentum x moment of inertia

Question 2

What is the relationship between mom of inertia and angular vel?

Answer 2

They are inversely proportional so as one increases the other decreases

Question 3

Explain the details of moment of inertia…

Answer 3

• Depends on the mass of the object and the distribution of the mass around the axis
• since mass is constant the distribution is the only things that can change the mom of in
• The closer the mass is to its axis of rotation, the easier to turn so the moment of inertia is low (low resistance)
• Increasing the distance of distribution of mass from the axis, will increase the resistance (moment of inertia) and decrease angular velocity
• ANGULAR MOMENTUM IS CONSTANT!