Skate Park Lab
Energy of Skateboarder
Height Speed Potential Energy Kinetic Energy Total Energy
6m 0 m/s² 4,704 Joules 0 Joules 4,704 Joules
3m 5.4 m/s² 2,352 Joules 2,352 Joules 4,704 Joules
0m 10.8 m/s² 0 Joules 4,704 Joules 4,704 Joules
2. At which height in the table, would the skateboarder have the greatest Kinetic Energy & Why?
The skateboarder would have the greatest kinetic energy at the height of 0m in the table. This is because kinetic energy is directly proportional to the square of the speed of an object. As the height decreases, the speed of the skateboarder increases due to the acceleration from the gravitational force, resulting in an increase in kinetic energy. At 0m height, the skateboarder has a speed of 10.8 m/s², which is the highest speed in the table, and therefore, the greatest kinetic energy.
To find the height at which the skateboarder has the greatest kinetic energy, we need to look at the table provided.
Kinetic energy is given by the equation: KE = 1/2 * m * v^2, where KE is the kinetic energy, m is the mass, and v is the speed.
In the table, we see that the mass of the skateboarder is constant, so we only need to compare the speeds.
Looking at the table, we can observe that as the height decreases, the speed increases.
At a height of 6m, the speed is 0 m/s², resulting in a kinetic energy of 0 Joules.
At a height of 3m, the speed is 5.4 m/s², resulting in a kinetic energy of 2,352 Joules.
At a height of 0m, the speed is 10.8 m/s², resulting in a kinetic energy of 4,704 Joules.
Therefore, the skateboarder has the greatest kinetic energy at a height of 0m because it has the highest speed.
In the given table, the skateboarder would have the greatest kinetic energy at the height of 3m.
At this height, the skateboarder has a speed of 5.4 m/s². The formula for kinetic energy (KE) is KE = 1/2 * mass * velocity².
Since the mass remains constant, the only variable that affects kinetic energy is the velocity. The skateboarder has the highest velocity at the height of 3m, which results in the greatest kinetic energy.