# Acrobatic Jumping

1735 Words 7 Pages
Dirt bike or motocross racing is an extremely competitive sport that has been enjoyed by masses of people across the globe. Millions of people have either watched or are very passionate about dirt bike racing. This is a sport that has been around for over one hundred years when the idea first came about in the U.K. motorcycle trial competitions in the early 1900’s ("Motocross"). As the sport grew in popularity, many improvements were made including: the terrain of the tracks, motorcycle suspension, tires, engines, and technique ("Motocross"). Technique ameliorations including jumping styles have been used by many riders and racers. The acrobatic jumping terms known as the “whip” and “scrub” are the most popular. These jump styles can show each …show more content…
This law states that: “An object accelerates because a force acts on it and the stronger the force, the greater the acceleration. The acceleration will be inversely proportional to the mass of the object given the same force.” (Kingaby). Kicking a soccer ball is fairly easy, mostly because light air is inside. All the ball needs is a little tap and it begins to move. Kicking a soccer ball sized rock is much more ineffective. The rock receiving a little tap will not do anything at all. The rock’s mass is much greater than that of a soccer ball, therefore it will take more force to accelerate the movement of the rock. The mathematical equation “Force = Mass × Acceleration” can be used to determine the relationships between the force needed, an objects mass, and its acceleration (Louviere). Compacting the amount of space used by the bike will increase the acceleration at which the object is moving. This happens because the counter forces are being lessened by the amount of space something is taking up. This relates to the first law concept of motion discussed. To conclude, the unbalanced forces between something will react against each another. The net force of an object is the overall difference between all balanced or unbalanced forces. Net force directly affects the object in that if two forces are unbalanced, the greater force will accelerate the object by …show more content…
During this experiment, Galileo dropped balls of different weights, masses, volumes, and material from the Leaning Tower of Pisa. The outcome of the experiment blatantly disproved of Aristotle’s theory. Aristotle believed that the speed objects will fall at is dependent on its mass. He theorized that larger objects fall at a faster rate than lighter objects ("Galileo 's Leaning Tower of Pisa Experiment"). Galileo’s experiment showed that despite differences in the objects, they all fell at an equal rate. In fact, he found that the lighter object started out falling ahead of the heavier one. The heavier object then caught up to speed with the lighter, causing them to reach the ground at the same time. In Galileo’s unpublished book On Motion, he wrote ideas about motion such as this experiment. He hypothesized that if two different masses were connected to a string and dropped from the tower, then the lighter object would hinder the fall of the heavier, causing it to fall at a slower rate (Helden). Scholars have put reason and logic into the ideas of Galileo’s experiment. The explanation to the difference in falling speeds at the beginning was due to the amount of force needed to keep the items in from falling. The heavier item required more force to unclasp than the lighter. This describes that in fact the lighter mass was dropped easier and quicker than the heavier. In relation to