A planet has orbital eccentricity

PHYSICS · Single correct · CBSE · Physics · Gravitation · Gravitation

Problem

A planet has orbital eccentricity e=0.20e=0.20. If its speed at aphelion is 30 km s−130\,\text{km\,s}^{-1}, find its speed at perihelion. (a) 36 km s−136\,\text{km\,s}^{-1} (b) 45 km s−145\,\text{km\,s}^{-1} (c) 24 km s−124\,\text{km\,s}^{-1} (d) 37.5 km s−137.5\,\text{km\,s}^{-1}

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