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The Real Physics Behind Mary Jane's Fall in Spider-Man: Analyzing Impact and Grip Strength

In this analysis, we explore the iconic scene where Mary Jane drops from Spider-Man's web, highlighting the physics of her fall and her improbable grip on a cable car. Calculations reveal that at an estimated height of 3.15 meters, Mary Jane would experience a falling distance of approximately 13.91 meters and an impact force beyond the threshold her hands could withstand. Given her weight and the physics of falling, it’s concluded that holding on to the cable car after such a fall would likely cause severe injuries or be impossible altogether.

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The Real Physics Behind Mary Jane's Fall in Spider-Man: Analyzing Impact and Grip Strength

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  1. Ashley Bober April 13, 2009

  2. The Scene • Mary Jane climbs down from Spider-Man along the cable to the cable car • The Green Goblin attacks Spider-Man, causing him to drop the cable • When Spider-Man grabs the cable again, Mary Jane falls and then grabs onto the edge of the car’s roof. 

  3. The Physics • It would be impossible for her to hold on to the car after falling from such a distance. 

  5. Calculations: Falling Distance • Estimated cable car height ≈ 3.15 m • On screen car height = 0.0102 m • Fall distance on screen = 0.0450 m }3.15 m 

  6. Calculations: Falling Distance • 3.15m / 0.0102m = X / 0.0450m • X = 13.91m falling distance • ≈ 45.59ft.About 3-4 stories MaryJane 13.91 m 

  7. Calculations: Impact Force • Kirsten Dunst’s est. weight = 120 lbs. ≈ 54.48 kg • F=ma=(54.48kg)(9.81m/s2) = 534.45N ≈ 120 lbs. force 

  8. Impact Force • Average female hands can handle about 92 lbs. of force • “It takes nine or 10 pounds of force to dislocate a shoulder” 

  9. Calculations: Terminal Velocity • Estimated time of fall ≈ (8.65s)/2 + 1.56s = 5.885 s • Free-Fall • vf=at=9.81m/s2(5.885s)= ≈ 129 mph • Sky-diving without a parachute 57.73 m/s (slow motion)/2 = real time 

  10. ___Conclusion • It’s impossible for Mary Jane to hold on to the roof of the cable car after falling from such a distance. • If she could she would at least sustain serious personal injuries. 

  11. ___Conclusion • It’s impossible for Mary Jane to hold on to the roof of the cable car after falling from such a distance. • If she could she would at least sustain serious personal injuries. 

  12. ___Conclusion • It’s impossible for Mary Jane to hold on to the roof of the cable car after falling from such a distance. • If she could she would at least sustain serious personal injuries. 

  13. Works Cited "Hand Grip Strength Protocol." Hand Grip Strength. Sept. 2003. Tufts University. 11 Apr. 2009 <http://www.tufts.edu/med/nutrition-infection/tnc-cdaar/protocols/Handgrip.pdf>. "Kirsten Dunst." Celebrity Galleries. 11 Apr. 2009 <http://celebritygalleries.org/kirstendunst.html>. "Main Titles." Rec. 2002. Music from and Inspired by Spider-Man. By Danny Elfman. Sony, 2002. Mary Jane. Digital image. Pensive? No, Just Thinking. 1 Jan. 2008. Blogspot.com. 11 Apr. 2009 <http://kevinmoberg.blogspot.com/2008/01/nye-party-dress-as-famous-movie.html>. Mary Jane. Digital image. Spider-Man Official Site. 2009. Marvel, Columbia Pictures. 12 Apr. 2009 <http://spiderman.sonypictures.com/movies/ spiderman/photogallery/stills/>. "Metric conversion chart." Metric conversion chart, metric conversion table. 2009. Science Made Simple, Inc. 11 Apr. 2009 <http://www.sciencemadesimple.com/metric_conversion_chart.html>.

  14. "Powell Street Cable Car." San Francisco Cable Car Museum. 2009. 11 Apr. 2009 <http://www.cablecarmuseum.org/car-powell.html>. "Slow motion." Wikipedia, the free encyclopedia. 8 Apr. 2009. 11 Apr. 2009 <http://en.wikipedia.org/wiki/Slow_motion>. Spider-man. Digital image. GameSpot: Video Games PC Xbox 360 PS3 Wii PSP DS PS2 PlayStation 2 GameCube GBA PlayStation 3. 6 May 2006. GAMESPOT unions. 11 Apr. 2009 <http://www.gamespot.com/pages/unions/read_article.php?topic_id=24590290&union_id=5488>. Spider-Man. Dir. Sam Raimi. Perf. Tobey Maguire, Willem Dafoe, Kirsten Dunst, and James Franco. DVD. Columbia Pictures Corporation, 2002. "Staying in the Game, cont'd." Staying in the Game, final - AMC Outdoor. 2007. Appalachian Mountain Club. 11 Apr. 2009 <http://www.outdoors.org/publications/outdoors/2007/staying-in-the-game3-amc-outdoors.cfm>.

  15.                  A special thanks to: Leigha, Ryan, Shayne, & Austin                

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