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# Physics of Longboarding

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## Brandon Benson

on 13 May 2013

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#### Transcript of Physics of Longboarding

Physics of Longboarding Personal Interest My interest in longboarding is a story that is a decent sized paragraph. I started off as a 'vert' skater. I was never very good and my favorite thing to do at the skate park was gather as much speed as I could. So my sister told me about longboarding. I decided to try it and got my dad interested. He began to research it and find some decent brands. I got a custom built long board built for speed. I decided to pursue it and now my dad and I go longboarding in the neighborhood fairly often each summer. Newton's First Law of Motion "A body in motion stays in motion, a body at rest stays at rest." Physics Newton's Second Law of Motion "An objects acceleration is proportionate and in the direction of the net force acting upon it." Newton's Third Law of Motion "Every action has an equal and opposite reaction." How the laws relate to Longboarding Acceleration The rate of change over time a=vf-vi/t Newton's Laws of Motion relate to every physics concept that relates to longboarding If my starting speed is 5 km/h and my final speed is 32 km/h and it took me 3 minutes, what was my acceleration rate? To solve this problem I would have to first, convert the three minutes in to seconds. Since htere are sixty seconds in a minute, multiply three by sixty.
180 Seconds. Next we subtract my starting speed from my final speed.

27 km/h Finally, we finish the equation.
27,000m/s / 180 seconds Next we convert km/h into m/s.
27*1000=27,000 m/s My acceleration rate was:
150 m/s^2 Force An influence that causes a change F=m*a First we convert kg to grams.
52.16*1000
52,160 grams. Suppose I weigh 52.16 kg, I accelerate by 12 m/s. How much force did I exert? Next we multiply 52,160 grams by 12 m/s^2 I exerted, 625,920 Newtons Distance Distance is how far an object traveled due to an outside force Energy is the ability to do Work Energy Constant Speed Constant speed is when you are neither accelerating or decelerating Work The Transfer of Energy Rolling Friction Due to something round, like a wheel, Microwelds break Motion Momentum Momentum is the hold of speed Air resistance Air resistance is the force that allows you to not be crushed by gravity Weight Weight is how much mass you have based on the gravitational constant. Negative acceleration Negative acceleration is the process of slowing down Kinetic Energy Kinetic Energy is the energy of Motion Power Power is how much time gravity takes to do something Motion is movement Unfortunately I could not find anything on the history of longboarding
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