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Unformatted text preview: .0 Correct Exercise 3.15
Ins ide a s tars hip at res t on the earth, a ball rolls off the top of a horiz ontal table and lands a dis tanc e
from the foot of the table. This s tars hip now lands on the unex plored Planet X. The c ommander, Captain
Curious , rolls the s ame ball off the s ame table with the s ame initial s peed as on earth and finds that it lands
a dis tanc e 2.61
from the foot of the table. Par t A
W hat is the ac c eleration due to gravity on Planet X?
= 1.44 Correct Enhanced EOC: Exercise 3.30
At its Ames Res earc h Center, NASA us es its large “20-G” c entrifuge to tes t the effec ts of very large
ac c elerations (hypergravity) on tes t pilots and as tronauts . In this devic e, an arm 8.84
long rotates about
one end in a horiz ontal plane, and the as tronaut is s trapped in at the other end. Suppos e that he is aligned
along the arm with his head at the outermos t end. The max imum s us tained ac c eleration to whic h humans
are s ubjec ted in this mac hine is ty pic ally 12.5 .
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- Spring '10