The graph below represents the kinetic energy, gravitational potential energy, and total mechanical energy of a moving block.
Which best describes the motion of the block?
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The graph shows constant total mechanical energy (E), decreasing gravitational potential energy (U), and increasing kinetic energy (K). This indicates energy is being converted from potential to kinetic. For free fall, U decreases and K increases by the same amount, conserving total energy. The linear change in U and K over time is characteristic of motion under constant acceleration, like gravity. The block is losing height, so it is moving downward.
Final answer: falling freely