The satellite of mass m revolving in a circular orbit of radius r around the earth has kinetic energy E . Then its angular momentum will be

Question

The satellite of mass m revolving in a circular orbit of radius r around the earth has kinetic energy E . Then its angular momentum will be, E m r 2, E 2 m r 2, 2 E m r 2, 2 E m r

MARKS App · Accepted Answer

If m is the mass and v is the orbital velocity of the satellite, then kinetic energy. E = 1 2 m v 2 o r E m = 1 2 m 2 v 2 o r m 2 v 2 = 2 E m o r m v = 2 E m … . i If r is the radius of the orbit of the satellite, then its angular momentum L = m v r Using Eq. (i), L = 2 E m r = 2 E m r 2

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