Answer:
Kepler's law of equal area
Step-by-step explanation:
Kepler gave the planetary laws of motion which described the motion of the planets in elliptical path around the sun.
Kepler's law of equal areas states that the line joining the planet and the sun sweeps equal areas in equal interval of time. This implies, closer the planet, faster it would revolve around the sun.
According to the question, in the experiment, a rope connects two students. As the first student pulls in the rope, the second student moves faster. This experiment is most likely demonstrating Kepler's law of equal areas.