Question

the diagram shows a ball resting at the top of a hill. which statement best describes the energy in this system? the potential energy in the system is greatest at x. the kinetic energy in the system is greatest at x. total energy in the system decreases as the ball moves from x to y. total energy in the system increases as the ball moves from x to y.

Explanation:

Potential energy is based on an object's position and mass. At the top of the hill (X), the ball has maximum height relative to Y, so its potential energy is greatest there. Kinetic energy depends on speed; at rest (X), it's zero. According to the law of conservation of energy, the total mechanical energy (sum of potential and kinetic) remains constant in the absence of non - conservative forces (like friction, which is not mentioned here).

Answer:

The potential energy in the system is greatest at X.