Sunday
March 29, 2015

Homework Help: Astronomy

Posted by keitanako on Monday, December 9, 2013 at 3:42pm.

A possible trajectory for sending a spacecraft to Mars is an elliptical orbit with Earth at its perihelion and Mars at its aphelion. The craft would be launched out of low-Earth orbit by a quick burst of rockets into solar orbit, and would then "coast'' until rockets fire again to match its speed to that of Mars and lower it into an orbit about the planet. Neglecting the acceleration and deceleration phases, how long would it take to get from low-Earth orbit to Mars along this "minimal-energy'' trajectory?

Express your answer in years.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Astronomy - The distance between the Earth and Mars when the two panets are at ...
Physics - On August 12, 2005 the Mars Reconnaissance Orbiter (MRO) was launched ...
Physics - On August 12, 2005 the Mars Reconnaissance Orbiter (MRO) was launched...
Physics Urgent!! - A day on Mars is 24.6 Earth hours long. A year on Mars is 687...
physics - On August 12, 2005 the Mars Reconnaissance Orbiter (MRO) was launched ...
Physics - You have been sent in a small spacecraft to rendezvous with a space ...
Physics - You have been sent in a small spacecraft to rendezvous with a space ...
astronomy - Your "weight" on Earth is a measure of the gravitational force ...
physics - A spacecraft of mass is first brought into an orbit around the earth. ...
physics - On July 15, 2004, NASA launched the Aura spacecraft to study the earth...

Members