Allu da Maj aka అల్లుడా మజాకా Lindsay 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 Weight 75 kg 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 = meters Distance traveled before fall: meters Calculations
Time traveling before fall: 3:64 seconds Velocity = distance time Velocity = 13.8 m 3.63 sec Velocity = 3.8 m/s Velocity before fall
Coefficient of friction ( µ ) Force of Friction F k = µ ·F norm = µ ·m·g F k =.4(619 kg)(9.81 m/s²) F k = 2,429 N Calculations (brick and sand) µ =.4
Stopping Distance d = ½(vi + vf)t d = ½(3.8 m/s)(4.54 sec) d = 8.6 meters Calculations
F k = m·a -2,429 = (619 kg)a a = m/s a = v f - v i Time horse and Chiranjeevi should have stopped t 0 t = -v i a t = t = 0.97 seconds
Calculations Distance Chiranjeevi and horse should have stopped d = ½(vi + vf)t d = 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 – Average Male Weight – Horse weight – Coefficient of Sand – Alluda Majaka video – Pictures – – – – – wallpaper.jpg wallpaper.jpg – – wallpaper.jpg wallpaper.jpg References