physics

At what speed should a space probe be fired from the earth if it is required to still be traveling at a speed of 3.48 km/s, even after coasting to an exceedingly great distance from the planet (a distance that is essentially infinite)?

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  1. Figure the work it takes to move an object from Earths surface to infintity, then add the remaining KE you want.

    Work=INT GMe*m dr/r^2 + m 3.48^2

    Set that equal to the KE at Earths Surface, mv^2, and solve for v.

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    bobpursley

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