Physics

Halley's comet moves about the Sun in a highly elliptical orbit. At its closest approach, it is a distance of 8.90 1010 m from the Sun and has a speed of 54 km/s. When it is farthest from the Sun, the two are separated by 5.30 1012 m. Find the comet's speed at that point in its orbit.

  1. 👍 0
  2. 👎 0
  3. 👁 163
asked by Alex
  1. Nevermind figured it out, just have to use m1v1=m2v2.

    1. 👍 0
    2. 👎 0
    posted by Alex
  2. v² =G•M/R²
    (v1/v2)²=R2/R1,
    v2=v1•sqrt(R1/R2)

    1. 👍 0
    2. 👎 0
    posted by Elena

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    Halley's comet moves about the sun in an elliptical orbit with its closest approach to the SUn being .59AU and its greatest distance being 35AU (1AU=Earth-sun distance) if the comet's speed at closest approach is 54km/s what is

    asked by cyndi on January 29, 2007
  2. College Physics

    In 1986, the distance of closest approach of Halley’s comet to the Sun is 0.57AU. (1 AU is the mean Earth-Sun distance = 150 million kilometers.) The comet’s speed at closest approach is 54.97 km/s. (a) – By 1989, Halley’s

    asked by johnathan on November 4, 2012
  3. physics

    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 5.1 1012 m from the Sun and moves with a speed of 12.0 km/s. What is the comet's speed at its

    asked by Meisha on March 29, 2011
  4. Physics

    Halley comet which passes around the sun every 76 years has an elliptical orbit. when closest to the sun it is at a distance of 8.823 x 10^10 m and moves with a speed of 54.6 km/s. The greatest distance between hally's comet and

    asked by Lonely on July 30, 2011
  5. AP Physics Halley's Comet

    Halley's comet orbits the sun roughly once every 76 years. It comes very close to the surface of the Sun on its closest approach. Estimate the greatest distance of the comet from the sun. Is it still in the Solar System? What

    asked by Henry on October 2, 2009
  6. Physics

    Halley's Comet orbits the sun about every 75 years due to the gravitational force the sun provides. Compare the gravitational force between Halley's Comet and the sun when the Comet is at aphelion (its greatest distance from the

    asked by Dontworryaboutit on February 25, 2016
  7. Physics

    Halley’s comet orbits the Sun with a period of 76.2 years. a) Find the semi-major axis of the orbit of Halley’s comet in astronomical units (1 AU is equal to the semi-major axis of the Earth’s orbit Physics - drwls,

    asked by Reese on May 5, 2011
  8. Physics

    Halley’s comet orbits the Sun with a period of 76.2 years. a) Find the semi-major axis of the orbit of Halley’s comet in astronomical units (1 AU is equal to the semi-major axis of the Earth’s orbit Physics - drwls,

    asked by Reese on May 5, 2011
  9. Physics

    1.Halley's comet moves about the sun in an elliptical orbit with its closest approach to the sun being 0.59 A.U. and its furthest distance being 35 A.U. [1 Astronomical Unit (A.U.) is the Earth-Sun distance.] If the comet's speed

    asked by Brianna on July 11, 2010
  10. Physic

    A particular comet has an elliptical orbit. When closest to the Sun (perihelion) it is at a distance of 8.823 1010 m and moves with a speed of 54.6 km/s. The greatest distance between this comet and the Sun (aphelion) is 6.067

    asked by Mary on March 28, 2010

More Similar Questions