Practice question
Question
A solid sphere of mass 5 kg and radius 0.2 m rotates at 10 rad/s . What is its angular momentum about its axis?
Explanation
Given:
A solid sphere of mass 5 kg and radius 0.2 m rotates at 10 rad/s . What is its angular momentum about its axis?
Formula:
I = 2/5 M R² = 2/5 × 5 × (0.2)² = 0.08 kg m².
Substitution & Calculation:
L = I omega = 0.08 × 10 = 0.8 kg m²/s .
Final Result:
The computed value matches expected outcome and confirms correct choice as per latest NCERT 2026-27.
Discussion
Comments
Please log in to join the discussion.
Login to commentNo comments yet. Be the first to start the discussion.