Questions
Two rotating bodies A and B of masses with moments of inertia and, have equal kinetic energy of rotation. If and be their angular momenta respectively, then
detailed solution
Correct option is C
Here, mA=m,mB=2m Both bodies A and B have equal kinetic energy of rotation kA=kB⇒12IAωA2=12IBωB2⇒ωA2ωB2=IBIA…………(1)Ratio of angular momenta, LALB=IAωAIBωB=IAIB×IBIA [Using eqn. =IAIB<1 ∵IB>IA∴LB>LATalk to our academic expert!
Similar Questions
A uniform thin rod of length l and mass m is hinged at a distance l/4 from one of the end and released from horizontal position as shown in Fig. The angular velocity of the rod as it passes the vertical position is
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