Questions
The maximum and minimum distances of a planet from the centre of the sun are 2R and 4R respectively, where R is radius of sun. Let M be the mass of sun.then the maximum speed of planet is
detailed solution
Correct option is B
from conservation of angular momentum mvr=constant mv12R=mv24R v1=2v2 from conservation of energy12mv12-GMm2R=12mv22-GMm4R =12 mv122-GMm4R 12mv12 -12 mv122 =GMm2R-GMm4R 38mv12 =GMm4R v1=2GM3RTalk 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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