Post a New Question

Physics

posted by .

Pluto’s minimum orbital velocity is 3.7 km/s. What are the values for vP (perihelion velocity) and vA (aphelion velocity)?

  • Physics -

    The minimum velocity occurs at aphelion (farthest from the sun). Using just the information you have provided, you cannot say what the perihelion velocity is. It can, however, be derived from the orbit eccentricity and the aphelion velocity (Va), easily using Kepler's second law:
    Va/Da = Vp/Dp
    Get the distance ratio Da/Dp from the orbit eccentricity, e = 0.249

    Da/Dp = (1+e)/(1-e)

  • Physics -

    Vp = Va(A/P) = 1.66

    1.66(3.7) = 6.14km/s

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Astronomy

    If a comet has a perihelion distance of 1.AU and an orbital period of 125 Earth years.. What is the comet's aphelion?
  2. Astronomy help

    If a comet has a perihelion distance of 1.AU and an orbital period of 125 Earth years.. What is the comet's aphelion?
  3. Astronomy

    Mercury has an orbital eccentricity of 0.21. Find the perihelion and aphelion distances of Mercury. What is the ratio of Mercury's orbital speed at perihelion to that at aphelion?
  4. physics: escape velocity

    You are on Pluto and would like to send a probe into space so that it does not fall back to the surface. What minimum launch speed do you need?
  5. Physics

    Given a velocity of 4m/s[E] and a second velocity of magnitude 6m/s (this is all that is given) Find the maximum and minimum values for the final velocity.
  6. physics

    What is the angular velocity in radian per second of a satellite that has an orbital velocity of 9000 m.s^-1, orbiting at a distance of 6500 km from the center of the earth
  7. physics

    Assume a canister in a straight tube moves with a constant acceleration of -3 m/s2 and has a velocity of 13.5 m/s at t = 0.00 s. (a) What is its velocity at t = 1.00 s?
  8. physics

    The distances from the Sun at perihelion and aphelion for Pluto are 4.410 109 km and 7.360 109 km, respectively. What is the ratio of Pluto's orbital speed around the Sun at perihelion to that at aphelion?
  9. science

    what is the different between escape velocity & orbital velocity ?
  10. Math

    Context: The function v(t) represents the velocity of a particle moving along a horizontal line at any time, t, greater than or equal to zero. If the velocity is positive, the particle moves to the right. If the velocity is negative, …

More Similar Questions

Post a New Question