Unformatted text preview: Problem 2. K&K, problem 3.4. Problem 3. K&K, problem 3.6 (as in problem 2, neglect air resistance). The given landing speed is before the tailhook snags the sandbag. Problem 4. K&K problem 3.11. Problem 5. K&K problem 3.14. Assume the ﬂatcar is initially at rest. The precise meaning of the words here can be ambiguous: Assume that the men jump so that after they jump they are moving a speed u relative to the ﬂatcar. One way they can do this is to run at relative speed u along the ﬂatcar and just continue oﬀ the end at this relative speed. In case b, the others stand still on the ﬂatcar while each man runs oﬀ. Problem 6. K&K problem 3.15. Problem 7. K&K problem 3.20. u is the speed of the exhaust relative to the rocket. The ascent is vertical. Call the time of launch t = 0. The equation as written in the book is confusing about signs: Since dm/dt is really negative, it should instead saydm/dt = γm is the rate at which mass is expelled. 1...
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 '08
 LYMANA.PAGE
 Physics, mechanics, Cone, Force, Mass, Fundamental physics concepts

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