1
Question
The
potential energy of a freely falling object decreases progressively.
Does this violate the law of conservation of energy? Why?
The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy? Why?
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Solution
No.
The process does not violate the law of
conservation of energy. This is because when the body falls from a
height, then its potential energy changes into kinetic energy
progressively. A decrease in the potential energy is equal to an
increase in the kinetic energy of the body. During the process, total
mechanical energy of the body remains conserved. Therefore, the law
of conservation of energy is not violated.
No. The process does not violate the law of conservation of energy. This is because when the body falls from a height, then its potential energy changes into kinetic energy progressively. A decrease in the potential energy is equal to an increase in the kinetic energy of the body. During the process, total mechanical energy of the body remains conserved. Therefore, the law of conservation of energy is not violated.
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