Mark is conducting an experiment to show how an object’s kinetic energy is affected by its mass and velocity. First, he lets an empty wagon roll down a hill and calculates its kinetic energy. Next, he repeats the experiment after placing a bag of sand in the wagon. Which is the best prediction for the second part of his experiment?
The best prediction for the second part of Mark's experiment is that the kinetic energy of the wagon with the bag of sand will be greater than the kinetic energy of the empty wagon. This is because adding the bag of sand increases the mass of the wagon, and according to the kinetic energy equation (KE = 1/2 * mass * velocity^2), increasing the mass will increase the kinetic energy as long as the velocity remains constant.
