When the lunar excursion module (LEM) was set adrift after returning two of the Apollo astronauts to

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When the lunar excursion module (LEM) was set adrift after returning two of the Apollo astronauts to the command module, which was orbiting the moon at an altitude of 87 mi, its speed was reduced to let it crash on the moon??s surface. Determine

(a) The smallest amount by which the speed of the LEM should have been reduced to make sure that it would crash on the moon??s surface,

(b) The amount by which its speed should have been reduced to cause it to hit the moon??s surface at a 45? angle.

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Vector Mechanics for Engineers Statics and Dynamics

ISBN: 978-0073212227

8th Edition

Authors: Ferdinand Beer, E. Russell Johnston, Jr., Elliot Eisenberg, William Clausen, David Mazurek, Phillip Cornwell

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