Questions
Speed of a planet in an elliptical orbit with semi major axis 'a' about the sun of mass M at a distance 'r' from the sun is
detailed solution
Correct option is A
if major axis is ‘a’ then mean distance is also a and total energy is -GMm2aat a distance r if the velocity is v then kinetic energy + potential energy = --GmM2a12mv2- GMmr=-GMm2av2=2GMr-GM2a v=GM2r-1aTalk to our academic expert!
Similar Questions
The masses, each of mass m are kept on the vertices of an equilateral triangle of side a. Find the work needed to be done to change the length of the triangle twice of its original value.
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