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In a space research project two schemes of launchin a space probe out of the solar system are discussed: i) To lauch a probe with a velocity lare enough to escape from the solar system directly. ii)The probe is to approach one of the outer planets and with its help change its direction of motion and reach teh velocity necessary to escape from the solar system. Assume that the probe moves under the gravitational field of the sun only or the planets depending on whichever field is stronger at that point. Determine the minimum velocity and its direction relative to the earth's motion that should be given to the probe on launching according to the scheme i). [Data - velocity of earth round the sun is 30 km/s]

2007-02-06 21:54:38 · 2 answers · asked by guyfromthesky 2 in Science & Mathematics Astronomy & Space

2 answers

I don't know the full answer but here is some more data to help.

If you’re standing on the photosphere of the sun -- the "surface", the gravitational strength of the sun will be about 27.9 times that of the Earth, if you were standing on the surface of the Earth. In metric units, on Earth, the acceleration due to gravity is 9.81 meters/sec^2, so on the Sun, that would be 273.7 meters/sec^2.

If you’re out here at our Earth’s orbit, that gravitational strength gets multiplied by the factor
(r_sun/r_orbit)^2, where r_sun is the radius of the sun (6.96E5 km), and r_orbit is the radius of the Earth’s orbit (1.5E8 km), for a total gravitational acceleration of 5.9E-3 meters/sec^2, or 0.0006 times the Earth’s gravitational force on the surface.

2007-02-06 22:10:27 · answer #1 · answered by 2Negative 6 · 0 0

Do your own homework, slacker.

2007-02-06 22:05:41 · answer #2 · answered by stargazergurl22 4 · 0 0

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