A small comet approaches the Sun such that its distance of closest approach…

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

Problem

A small comet approaches the Sun such that its distance of closest approach (perihelion) is

0.50\,\text{AU}

and its farthest distance (aphelion) is

1.50\,\text{AU}

. If its speed at perihelion is

50\,\text{km\,s}^{-1}

, determine its speed at aphelion. (a)

25\,\text{km\,s}^{-1}

(b)

150\,\text{km\,s}^{-1}

(c)

16.7\,\text{km\,s}^{-1}

(d)

33.3\,\text{km\,s}^{-1}