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--- course_planning:183_projects:s20_project_7 [2020/02/15 05:21] – pwirving
+++ course_planning:183_projects:s20_project_7 [2020/02/20 18:40] (current) – mherzog
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 </WRAP>
-/*
 ===== Scenario 7a: Captain America slows down a train =====
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-*/
-/*
 ===== Scenario 7b: Iron Man speeds up a train =====
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 . Which system did you choose for your analysis? Why?
-*/
-/*
 ===== Scenario 7c: Hawkeye Launches Arrow =====
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 . Which system did you choose for your analysis? Why?
-*/
-/*
 ===== Scenario 7d: Spiderman drops an apple =====
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 . Which system did you choose for your analysis? Why?
-*/
-/*
 ===== Scenario 7e: Captain Marvel lowers the Infinity Gauntlet =====
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 . Which system did you choose for your analysis? Why?
-*/
-/*
 ====== Project 7f: Breakneck -- The new roller-coaster at Michigan's Adventure ======
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 Your tasks are (a) to decide on an appropriate braking force and length of the braking region needed on the straightaway to stop the car at the right location, and (b) the effective spring constant of the turnaround device.  The car has special accelerometers mounted which relay that information, and adjust the braking force to provide the acceleration you request.  The most important piece of information for these devices is that a person can safely sustain accelerations of 3-4 “g’s” for a brief time, but not more than that.
-[[:183_notes:learning goals:week 7|Learning Goals Week 7]]
 {{183_projects:problem_8_diagram.jpg?800}}
+====== Project 7g: Hulk Trap ======
+Black Widow unfortunately finds the Hulk trapped in a net by the ceiling, which is tied to an anchor on the floor. Black Widow wants to rescue the Hulk but doesn't want him mad at her for just dropping him directly to the floor. If the Hulk weighs 566 kg, how much weight should the Black Widow attach to the other end of the rope so that the Hulk will land on the ground with a speed of 3 m/s?