Anonymous
Anonymous asked in Science & MathematicsAstronomy & Space · 2 months ago

If Sally could drive a flying car at a constant speed of 140.0 km/hr , how long would she take to drive to a solar object 7.1 AU away? ?

If Sally could drive a Jetson's flying car at a constant speed of 140.0 km/hr across oceans and space, approximately how long (in years) would she take to drive to a solar system object 7.1 AU away? Also, may you please provide the steps?

6 Answers

Relevance
  • Clive
    Lv 7
    2 months ago

    Do your own homework.  You learn better that way.

  • Mike
    Lv 7
    2 months ago

    You know the speed and you know the distance, just do the math.

    Convert 7.1 AU to kilometers first.

    Time of travel = distance / speed.

  • 2 months ago

    An AU is about 150,000,000km.   

    150,000,000km / 140km/hr = 1,071,428.6 hours to complete a single AU, so

    1,071,428.6 x 7.1 = 7,607,142.8 hours to go 7.1 AU.  (That's about 867 years...)

  • Bill-M
    Lv 7
    2 months ago

    First thing we have to do is convert AU's  to Kilometers.

    That would be 1.062e+9  Kilometers

    Then just divide by 140.

    That would be = = 7.5857142857143e6 Hours

    there are 8760 hours is a year.

    More Division.

    That comes out  866 years

  • How do you think about the answers? You can sign in to vote the answer.
  • 2 months ago

    This is a simple question of rearranging the speed formula.

    speed = distance / time

    You are looking for time, so it now looks like this

    time = distance / speed

    The trick is to watch out for the units.

    The speed is in km/h

    Therefore, you need a distance in kilometres.

    One astronomical distance is roughly 150,000,000 km

    You need her to cover 7.1 times that distance.

    You divide the distance to reach the object by the speed. Because of the units used, the result will be in hours.

    ---

    The official value of 1 AU = 149,597,870.7 km

    (but we often use 150 million for quick calculations)

    The length of the "average Gregorian year" is 365.2425 days of 24 hours each.

    This is the duration used in our calendar over long periods of time.

    However, for short periods (for example, if she gets there before the year 2100), we can use the "Julian year" of 365.25 days ( = 8766 h)

    (She will take a lot longer...)

    ---

    At a speed of 140 km/h over a year of 8766 hours, she only covers 0.00818 AU per year. It would take her over 122 years to cover one AU.

  • Zardoz
    Lv 7
    2 months ago

    Sally can't drive a car in space for the next 3 years because of multiple DWI's.

    Source(s): [n] = 10ⁿ
Still have questions? Get your answers by asking now.