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MHT CET202014 Oct 2020Morning ShiftPhysicsRotational MotionActual

A satellite of mass 'm', revolving round the earth of radius 'r' has kinetic energy (E). Its angular momentum is

Options

  1. A( mEr ² )^ 1 2
  2. B( mEr ² )
  3. C(2 ~m Er ² )^ 1 2
  4. D(2 mEr ² )

Correct answer

C. (2 ~m Er ² )^ 1 2

Step-by-step solution

aligned E = 1 2 mV ² V &= 2 E m Angular momentum L &= mvr = m 2 E m r &= 2 mEr ² = (2 mEr ² )^ 1 2 aligned

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