Question

click on the \graphs\ section at the bottom of the simulation. pause the simulation and check the \grid\ box. place the skater at the top of either side of the ramp such that their height is 4 meters. click on the switch at the top - center of the \energy graph\ to switch it to the \time\ setting. click on the \thermal\ checkbox at the left of the \energy graph\ to turn off that energy type. then, press play. observe how the values for each type of energy change across time on the graph. which inferences can be made about the relationship between kinetic, potential, and total energy of the skater? choose two correct answers. the total energy of the skater is constant the total energy of the skater is the sum of their potential and kinetic energy. the total energy of the skater is equal to their potential energy only the total energy of the skater is equal to their kinetic energy only. this question requires at least 2 answers.

Explanation:

In a closed - system (assuming no non - conservative forces like friction when thermal energy is turned off), the law of conservation of energy applies. The total mechanical energy (sum of kinetic and potential energy) of the skater remains constant. Total energy \(E = K+U\), where \(K\) is kinetic energy and \(U\) is potential energy.

Answer:

The total energy of the skater is the sum of their potential and kinetic energy.
The total energy of the skater is constant.