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...
... middle of paper ...
...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
Cross-country skiing is as much of a competitive sport, as it is a back country one. Cross-country skiing is enjoyed by people of all ages, and can be relatively inexpensive. There is no need for lift tickets and with a little maintenance equipment can last for decades. As a result of its broad audience, many people don't realize that physics plays a large role in cross-country skiing. This web page was designed to briefly describe some of the concepts behind the physics of skiing, and give a basic understanding of both the sport and the science.
...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.
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.”
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
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.
The level of athleticism and skill required for a successful vault is overwhelming. Pole-vaulting, a Track and Field event, was introduced to the Olympics in 1896 (The Physics of Pole Vaulting, 2009). The goal of this event is to get over a bar that is set at a certain height using a vaulting pole for a boost. The athlete has three attempts to get over each height; once they have failed the three attempts, they are out of the competition. Athletes that are able to get over the height within the three attempts move on to the next height, which usually increase by 3 to 6 inch increments. Although the vaulting pole is crucial in pole-vaulting, there is more to it then that, all of which play a huge role in how high you get.
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.
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.
...ject’s/object’s weight multiplied by the velocity the subject/object is moving at, squared. In order for the broad jumper to increase the change in kinetic energy he/she needs to produce a faster velocity. This would mean he/she would have to produce a quick and efficient transition from flexion to extension at the beginning of the broad jump. Potential energy is defined as the amount of energy that is “stored” within a subject or object. The mathematical formula for potential energy is PE=mgh, where “m” mass, “g” is the acceleration of gravity (9.81 m/s), and “h” is height. The broad jumper has most amount of potential energy when he/she is at the apex of the flight phase. In order to increase the amount of change in potential energy the athlete must obtain the greatest height possible. This allows the athlete to fall longer, thus obtaining a further distance.
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.
Similar to the height vs. time graph, the dancer’s trajectory in a jump is also a parabola. If the dancer jumps so that the center of gravity rises by two feet, and the horizontal velocity is 10 ft/sec, the path will look like this.
Speed can be characterized as the velocity of something in a provided guidance. Increasing speed is the vector amount that is characterized as the rate at which an item changes its speed. Jumpers ought to quicken to idle speed and keep up speed through the bounce. Ideal speed is at full speed, however capable and controllable sprint so that the run is steady. The state ought to concentrate on force (see underneath) while the move from the begin ought to display ideal sprint mechanics with the body at 90o with the ground, going at most extreme speed, having foot contacts specifically beneath the hips. Relocation is the vector or the size of a vector from the starting position to a resting position expected of a body. Shot movement can be any anticipated
Thesis: Auto racing is becoming a safer sport with all of the new innovations introduced in the past couple of years including the caught fence, safety barrier, and Han’s device.
James Naismith, born 11/6/1861, in Almonte, Ontario, Canada invented the greatest game of all time. Basketball was invented December 1891 at a YMCA gymnasium in Springfield, Massachusetts. The game was invented to be an indoor game for students to play during the cold winter months since there were no previous indoor game that could involve a whole class. Basketball started out with only 13 rules that were made by Naismith in 1891 and the rules have continued to grow and change up to present day.
Swoosh! Nothing sounds better to a basketball player, than the sound of the basketball when it goes through the net. It is, without a doubt, the most satisfying sound in the entire game. However, this sound doesn’t come easy. In order to hear this beautiful sound, a player must perfect the shot. The secret behind the ideal shot, lies in two incredibly significant steps; the position/grip of the ball and Jumping. Adding the following information to anyone’s shot would make it unstoppable.