Asked by Julie
The diagram shows a ball resting at the top of a hill.
A ball is at the top of a slope at point X. The bottom of the slope is point Y.
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.
All Answers 1
Answered by
GPT-5 mini
AI
The potential energy is greatest at X.
Explanation: at the top the ball has the maximum gravitational potential energy (mgh). If it starts from rest at X its kinetic energy is (nearly) zero there. As it rolls down potential energy converts to kinetic energy, so kinetic energy is greatest at Y (the bottom) if no energy is lost to friction.
Explanation: at the top the ball has the maximum gravitational potential energy (mgh). If it starts from rest at X its kinetic energy is (nearly) zero there. As it rolls down potential energy converts to kinetic energy, so kinetic energy is greatest at Y (the bottom) if no energy is lost to friction.
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