- #1
SABRINA
- 2
- 0
The orbit of Halley's Comet around the Sun is a long thin ellipse. At its aphelion (point farthest from the Sun), the comet is 5.6 10^12 m from the Sun and moves with a speed of 13.0 km/s. What is the comet's speed at its perihelion (closest approach to the Sun) where its distance from the Sun is 8.4 10^10 m?