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Exam20003

# Exam20003 - Problem 3 14 p_oints Given that a space shuttle...

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Unformatted text preview: Problem 3. 14 p_oints) Given that a space shuttle orbiting the Earth at a height of 220 km completes one revolution in 1 hour and 29 minutes ﬁnd the average radius of the Moon’s orbit, if the Moon takes 27.3 days to complete one revolution around the Earth? \ K Key‘Ms ii; LAW T. t 8% Winnie, r3 r3 #1: 27.3} 214% go "”34“” : 33’3‘1WWI .1, —_ _2— 2 2 -r 1 14 C71)/:'. (393»? /3 ‘ 1 *~ 2 w 2 so a 3 1 T‘ 83 2 J —_ 22 = quo )4 [‘1 r‘ K?) I" 6370 km + 0 km. W t = 3 zinc | L1 2. "' l T, ) V‘l 1%5‘10 kM)x Co Problem 4. 97 points! In a “Rotor-ride” at a carnival, people are rotated in a cylindrically walled “room”. The radius of the room is 4.6 m, and the room rotates at a rate of one revolution every 2.0 seconds when the ﬂoor is dropped. a) Draw a Free Body Diagam (FBD) for a person and identify all forces acting. b) Which of these forces acts as a centripetal force? Circle/identify it in the FBD. c) What is the minimum coefficient of static friction between the clothes and the wall so that the people will not slip down? :1: 1:} Norm we \Vn 9% O) 'L _ \3 _ 2W“ _ 2W!‘~b6m.) _ M FN-mF k7“ 20\$ - 23 "‘ “+05; 7. mg :m ”S V 3 V ”1.6m 9.807; ﬂ\$=~%—)mL-o.2\ (3) IHs/) ...
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