1 (a) Perilune of a lunar approach trajectory is 250 km. If v2 = 0.5 km/s, calculate the required value of d and the Av at perilune required to place the probe in a circular prograde lunar orbit. {Ans.: 6 = 7.745°, Av = 673m/s}

University Physics Volume 1
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Chapter13: Gravitation
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(Answer both qestions very neatly and kindly
explain all the terms in it).
1 (a) Perilune of a lunar approach trajectory is
250 km. If v2 = 0.5 km/s, calculate the
required value of 6 and the Av at perilune
required to place the probe in a circular
prograde lunar orbit. {Ans.: 8 = 7.745°, Av =
673m/s}
(b) Find the radial speed of the moon on April
30, 2025, at O6:00:00 UT.
{Ans.: 56.7 m/s}
Transcribed Image Text:(Answer both qestions very neatly and kindly explain all the terms in it). 1 (a) Perilune of a lunar approach trajectory is 250 km. If v2 = 0.5 km/s, calculate the required value of 6 and the Av at perilune required to place the probe in a circular prograde lunar orbit. {Ans.: 8 = 7.745°, Av = 673m/s} (b) Find the radial speed of the moon on April 30, 2025, at O6:00:00 UT. {Ans.: 56.7 m/s}
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