1.

Whatthe minimum enesqto launch a Satellite ofauOrbit adthesurfaceat-Eulh2_darth

Answer»

As we know, Gravitational potential energy = - GM /r

and orbital velocity, v0= vGM/R+h

Ef= ½ mv^20– GMm/3R = ½ m GM/3R – GMm/3R

= GMm/3R (1/2-1) = - GMm/6R

Ei= - GM/R + K

Ei= Ef

Therefore minimum required energy, K = 5GMm/6R

why we calculated the kinetic energy



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