Alluda Majaka
అల్లు�� డామజాకాLindsay Krause & Ellen Sederdahl
Video Explanation•Chiranjeevi is being chased by over a dozen men on either horseback or in Jeeps•He steals one of their horses and continues to be chased•As he and the horse continue down the road, a tractor trailer
completely blocks the intersection•In order to elude his followers, he gets the horse to fall, to slide
underneath the inconvenient tractor trailer, and get back up again, continuing his chase
• Find the force of friction• Use distance formula to find the
stopping distance in the movie• Use force of friction to determine acceleration• Use acceleration to determine the time it should
have taken the horse and Chiranjeevi to stop• Substitute the new time into the distance formula to
find the distance they should have traveled
Physics Explanation
Chiranjeevi• 5’9”• Average weight• 165 lbs = 75 kg
Horse• Average weight of riding horse• 1,200 lbs = 544kg
Total Weight75 kg + 544 kg = 619 kg
Estimations
Chiranjeevi begins at a distance of approximately 4
cars (3 cars and one car-sized space between the first car
and the tractor trailer)Approx. 1 ft between each car
Length of Car•Approximately 6.5 tires• 1 tire = 20 approx. inches
20 in.
Estimations
6.5 (length of one car in tires)X 20 (tire length in inches)130 inches per car 130 (car length)X 4 (number of cars + car sized space)520 total inches of cars & space (43.3 feet) 520 (total inches of cars & space)+ 24 (distance between the three cars) 544 = 13.817 meters
Distance traveled before fall:
13.817 meters
Calculations
CalculationsTime traveling before fall:
3:64 seconds
Velocity = distancetime
Velocity = 13.8 m3.63 sec
Velocity = 3.8 m/s
Velocity before fall
Coefficient of friction (µ)
Force of FrictionFk = µ·Fnorm = µ·m·gFk = .4(619 kg)(9.81 m/s²)
Fk = 2,429 N
Calculations
(brick and sand)
µ = .4
Stopping Distanced = ½(vi + vf)td = ½(3.8 m/s)(4.54 sec)
d = 8.6 meters
Calculations
Calculations
Fk = m·a-2,429 = (619 kg)aa = -3.924 m/sa = vf - vi
Time horse and Chiranjeevi should have stopped
t0
t = -via
t = -3.8-3.924
t = 0.97 seconds
CalculationsDistance Chiranjeevi and horse
should have stoppedd = ½(vi + vf)td = ½(3.8 m/s)(0.97 sec)d = 1.84 meters
Conclusion
In the film Chiranjeevi and the horse traveled about 8.6 meters in 4.54 seconds as they were sliding. However, in reality they should have traveled only 1.84 meters in .97 seconds. In the movie Chiranjeevi and the horse traveled
6.76 meters too long and 3.57 seconds too long.
8.6 m – 1.84 m = 6.76 meters too long
4.54 sec – .97 sec = 3.57 seconds too long
8.6 meters = 28.2 ft 1.84 meters = 6.0 ft
• Chiranjeevi height– http://www.imdb.com/name/nm0158112/bio
• Average Male Weight– http://www.halls.md/ideal-weight/met.htm
• Horse weight– http://en.wikipedia.org/wiki/Horse#Size_and_measurement
• Coefficient of Sand– http://www.supercivilcd.com/FRICTION.htm
• Alluda Majaka video– http://www.youtube.com/watch?v=uIFxEnkufnk
• Pictures– http://lifestyle.iloveindia.com/lounge/images/chiranjeevi.jpg– http://raveendrareddy.files.wordpress.com/2008/09/reenacreations-chiranjeevi1.jpg– http://www.window2india.com/cms/admin/userfiles/Image/Chiranjeevi.jpg– http://www.extramirchi.com/wp-content/uploads/2008/08/padmabhushan_chiranjeevi.jpg– http://s.chakpak.com/se_images/39651_-1_564_none/south-indian-superstar-chiranjeevi-wal
lpaper.jpg– http://bkr.8k.com/– http://s.chakpak.com/se_images/39653_-1_564_none/south-indian-superstar-chiranjeevi-wal
lpaper.jpg
References
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