What is the unit of angular momentum in the SI system?

Practice Questions

Q1
What is the unit of angular momentum in the SI system?
  1. kg·m/s
  2. kg·m^2/s
  3. kg·m^2/s^2
  4. Joule

Questions & Step-by-Step Solutions

What is the unit of angular momentum in the SI system?
  • Step 1: Understand that angular momentum is a measure of how much motion an object has when it is rotating.
  • Step 2: Know that angular momentum depends on two things: the mass of the object and how far it is from the axis of rotation.
  • Step 3: The mass of the object is measured in kilograms (kg).
  • Step 4: The distance from the axis of rotation is measured in meters (m).
  • Step 5: Angular momentum also involves time, which is measured in seconds (s).
  • Step 6: Combine these units: Angular momentum is calculated as mass times distance squared divided by time, which gives us kg·m^2/s.
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