Questions
A particle is making uniform circular motion with angular momentum L. If its kinetic energy is made half and angular frequency be doubled, its new angular momentum m will be
detailed solution
Correct option is A
We know thatL=mvr and E=(1/2)mv2Now L=(2E/v)ror L=2ErÏÃr=2EÏ (âµV=rÏ)When E is halved and Ï is doubled, thenLâ²=2E2Ã2Ï=E2Ï=L4Talk to our academic expert!
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A particle of mass m = 5 units is moving with a uniform speed , units in the XOY plane along the line y = x + 4. The magnitude of the angular momentum of the Particle about the origin is
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