The Physics behind Daredevil Motorcycle Jumpers
For a span of about 20 years only a few people were brave enough to be motorcycle stuntmen. Performing death defying jumps were and still are looked upon as a “crazy” action. It takes much practice, natural skill, and planning for a stuntman to perform a successful jump. Of course practice is dictated by ones determination, skill is acquired with the combination of practice and good genes. And the planning has to do with physics. Sure one could just “grip it and rip it” go balls out and just jump, but the safe way to do it deals with careful planning, which directly relates to physics topics. So the question is, how do motorcycle jumpers such as Evil Knievel plan out their jumps and clear such a great distance in the air?
It all starts with calculations. The first information the jumper would want to know about is the angle of the ramp, simply Theda. Then from the equation
Hd= VoCOS(theda) x time, the jumper would calculate how fast he would need to go in order to clear the gap. Lets say hypothetically Evel Knievel was attempting a jump of 100m and was launching himself off a 45 degree ramp, to find how fast he needs to go he will use the Horizontal Distance formula: 100m= Vo COS(45)(4s). Vo = 35.35m/s or 79.189 mi/h. [Horizontal Distance = initial velocity x cosine of theda x time in air]. This is the slowest possible speed Mr. Knievel could go and still clear the 100m gap, 35.35 m/s or 79.189 mi/h. So Evel Knievel knows how fast he needs to go, but there is a vertical factor that is involved, and to find out how high he is going to fly, he will use the Verticle Distance formula, Vd= VoSIN(theda) x Time – (1/2)(10)(Time^2). [Verticle Distance = initial velocity x s...
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...t as the sport’s popularity grows, so does the pool for potential daredevils. Physics is a key instrument in the overall success of the sport. It provides a since of safety with its formulas and technological advances, as well as a general structure for the performed stunt. The rider knows how fast he needs to go in order to launch himself and his motorcycle off an angled ramp and land clear on the other side of the gap. He knows how high and far he is supposed to go and this information proves crucial for the success of the stunt. Its true, that motorcycle jumping is a dangerous sport, but as the implications get safer, the world can only expect bigger jumps in the future.
Works Cited
- Hewitt, Paul. Conceptual Physics: Tenth Edition. St.
Petersburg, FL. 2006.
- World Records.
http://www.johnnyairtime.com/worldrecordsjumping.htm
Paul E. Johnson, with the help of painstakingly thorough research, tells the story of a drunken, deviant, death-defying daredevil that would create his own fame from his many daring stunts. This daredevil, Sam Patch, would become an American icon through folklore and storybooks for his magnificent jumps from the tops of waterfalls into the waters below. The book begins with a look into Sam Patch’s lineage. The most important of Sam’s ancestors’ was his father, whom was a drunkard and ultimately a failure to the family. He lost everything and left the family to fend for themselves. As a young boy, Sam began working in a mill, where he eventually became one of the best “mule spinners” in the town of Pawtucket. It was there that he and a group of other young boys his age began jumping over the Pawtucket Falls, a large waterfall in the town. They treated it like an art, and eventually became known throughout the town for their refined “style.”
Then the. 1. What is the difference between a. Set out equipment as shown in the diagram. 2. What is the difference between a.. Ensure the height at the start line (the summit of the ramp) is.
Statistics taking from Spain, United Kingdom, Germany and Netherlands show the majority of all bicycle accidents involve a motor-powered vehicle such as a car, bus, truck, tram, etc... [9]. In Germany in 2011, 10% of fatally injured road users were cyclists [13]. Bicycle-vehicle accident accounted for 60% of all bicycle accidents, while bicycle-pedestrian and bicycle only accidents make up 5~6% and 12~16% respectively [9]. Data presented in a report conducted in Germany stated, accidents involving collisions with vehicles accounted for 38% of all bicycle traumas while 26% of incidents involved the rider only [14]. The most common collision partner in a bicycle-vehicle accident was a
be the height of the ramp which in turn would affect the angle of the
So using this formula but with the data we collected from our first attempt, this is what it would look like; Tan(60°) x 23m = 39m. As you can tell this answer collected from our first attempt is very well incorrect, but at the time, our group did not know this.
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The Skilled Motorcyclist Association urges riders to take steps to make them easier for others to see. Many crashes involving another vehicle occur because a negligent motorist simply failed to see the motorcycle. One safety trick is wearing a helmet that is white or includes bright colors. This improves the rider’s chances of being noticed, which lessens the risk of an accident significantly.
Gymnasts use physics everyday. As a gymnast I never realized how much physics went into every motion, every back handspring, every mistake on the bars. If gymnasts were physicists (or at least knew more about physics) they would be better equipped to handle the difficult aspects of gymnastics. As a gymnast I learned the motions that were necessary to complete the tricks that I was working on, and as a coach I taught others the same. I never truly understood why a particular angle gave me a better back handspring or why the angle that I hit a springboard at really mattered when completing a vault. We are going to explore some of the different apparatuses in gymnastics and a few of the physics laws that are involved in them. We will not even barely scratch the surface of the different ways that physics can explain gymnastics.
Before a diver jumps off of a springboard, he does a sort of hop-skip step called a hurdle. After doing a few steps, the diver leaps up into the air with his arms raised. When he lands back down on the tip of the board, he swings his arms down past his legs and then up, leaping into the air and off of the board.
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...se to put a mark behind the board to aim for so when he jumped he wouldn’t foul. He tried what Long had suggested and he didn’t foul and got 26ft. 0 in smashing the record. On the final jump Long had faulted and just like that Jesse won the broad jump. In his last jump Jesse smashed the record again getting 26ft, 5.5 in.
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