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Disproving Physics Disney Pixar “Up”
Lauren Simcox & Becky Shaw
Objective
• Using mass, acceleration, velocity, time and force to disprove the scene where Mr. Fredrickson stops the house from falling off the blimp.
Movie Scene
• Russel sails the house towards the blimp.• Charles Muntz shoots some of the
balloons holding the house, causing it to fall onto the blimp.
• The house slides to the tail fin of the blimp, and Mr. Fredrickson stops the house from falling by holding a hose attached to the house.
• www.youtube.com/watch?v=rV6rNqin4P8
Calculations:
National Geographic Results:
~ 300 balloons to make the house float~ Each balloon could hold one tank of helium
Volume of a Balloon:
V= 4/3 πr3
=4/3 π(.1143m)3
= .00625m3
Number of Regular Balloons needed to float the house :
6 m3 = .00625 (X) m3
= 960 - # of balloons that one tank of helium can fill. 960 (300) = 288000 - regular sized balloons to float the house
Weight of the house:
18800 sq. ft. X 45 lbs./sq ft = 846000 / 2.2 = 384545.5 kg
~ Through estimation, we calculated the house to be 18800 ft2
~ And for each ft2 the house weighs 45 lbs.
The distance the house slid: 41.8 ft - one side of the house X 4 - estimated distance 167.2 ft - the house slid
Velocity the house moved at:V=d/tV = 167.2 / 7.85 - time estimated from movie
V = 21 m/s
Ft = m ( vf- vi )F(7.85) = 384545.5 (0 - 21.3)F(7.85) = -8190819.15F = -1043416.5 N of Force!
How much force will Mr. Fredrickson need to stop the house from falling?
Can Mr. Fredrickson Stop It ?!?!
No he can't....It would be impossible for him to use over 1 million newtons of force to stop the moving house sliding along the blimp.
The End
Thanks for Watching!
Works Cited
•www.youtube.com/watch?v=rV6rNqin4P8• http://science.howstuffworks.com/helium2.htm
• http://www.alibaba.com/showroom/helium-cylinder.html