📝 Multiple Choice Question
General-science
Which of the following statements is true regarding the total mechanical energy of a freely falling body in a vacuum?
A
it increases continuously until it hits the ground
B
it decreases as potential energy is lost
C
it remains constant at all points during the fall
D
it first increases and then decreases due to gravity
Explanation
In a vacuum, only conservative forces act; thus, the sum of kinetic and potential energy remains constant throughout the motion.
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