1.

A satellite of mass m is to be launched in a circular orbit at a height 2R above the surface of theearth. Then, minimum kinetic energy with which it has to be launched from the surface of theearth is (g is the acceleration due to gravity on the surface of the earth)a) mgrb) 2mgc) 5mgd) mgr

Answer»

a correct answer is (d) mgR/3



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