Physics · Rotational Mechanics
A mass M hangs on a massless rod of length l which rotates at a constant angular velocity ω. The mass moves at a steady speed in a horizontal circular path. Point A is the center of the circular path on the z-axis, and Point B is the fixed pivot point at the top of the rod. Let LA and LB be the angular momenta of M about points A and B respectively. Which of the following statements is correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Both LA and LB are constant in magnitude and direction
- 2LB is constant in direction but varies in magnitude
- 3LB is constant both in magnitude and direction
- 4LA is constant both in magnitude and direction✓
Correct answer
LA is constant both in magnitude and direction
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