Skate Park Physics. Skate Park Physics. Physics is Phun. Before we get started lets go to the link below and open the skate park sim. http://phet.colorado.edu/en/simulation/energy-skate-park-basics. Friction. Set the grid in the background. Explore what would happen with no friction
Skate Park Physics
Physics is Phun
Set the grid in the background.
a. How does the skaters starting point compare with the ending point?
b. What happens when you increase the friction?
c. Find the friction for the skater.
Check the square for the pie chart.
Check the bar graph.
Check the box for the speedometer.
Take a few minutes and try the other track options. Observe the speed, energy. Vary the friction of the skateboarder.
The formula for kinetic energy is mv2.
The formula for potential energy is mgh.
Because of conservation of energy
mv2 + mghon a frictionless track is equal throughout the track. The mass, the acceleration of gravity are constant and the velocity and the height of the skater are variables.
(40kg)(0 )2 +(40kg)(9.8)(3m)=(40kg)v 2+(40kg)(9.8)(0m)
Solve for the velocity
Now create your own skate park.
How does the law of conservation of energy influence your considerations.
Kinetic Energy: EK = 0.5mv
Potential Energy: EP = mg∆h.
SPI.3231.1.6 Given the static and kinetic friction coefficients (μs and μk);
select the appropriate coefficient of friction and calculate
the force necessary to move the object.