Practice question
Question
A solid sphere of mass 4kg and radius 0.3m has an angular momentum of 7.2kg m2/s. What is its angular velocity?
Explanation
I = 25MR2 = 25×4×(0.3)2 = 0.144kg m2. ω = LI = 7.20.144 = 50rad/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 50 rad/s. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.
Related blogs
Guides and insights connected to this topic
Periodic Classification of Elements Notes - Dobereiner Triads, Newlands Octaves, Mendeleev and Modern Periodic Table
Explore early attempts to classify elements, covering Dobereiner’s triads, Newlands’ law of octaves and Mendeleev’s table with examples and key details.
Determination of KLa
IntroductionThe volumetric liquid mass transfer coefficient (KLa) is a useful parameter to characterize the bioreactor's capacity for aerati...
Determination of TOTAL DISSOLVE SOLID (TDS)
IntroductionThe term “solids” is generally used when referring to any material suspended or dissolved in water or wastewater that can be phy...
Discussion
Comments
Please log in to join the discussion.
Login to commentNo comments yet. Be the first to start the discussion.