Words given precise definitions in physics are sometimes used in popular literature in interesting ways. For example, a rock falling from the top of a cliff is said to be “gathering force as it falls to the beach below.” What does the phrase “gathering force”mean, and can you repair this phrase?

Intersting for physics students.

Answers (6)

arlie 09-10-2012
arlie - University of Iowa (IA)
The rock increases in speed. The farther it has fallen, the more force it might exert on the sand at the bottom; but it might instead make a deeper crater with an equal-size average force. The farther it falls, the more work it will do in stopping. Its kinetic energy is increasing due to the work that the gravitational force does on it.
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dharitree 28-01-2013
dharitree - Allahabad University
Words given precise definitions in physics are sometimes used in popular literature in interesting ways. For example, a rock falling from the top of a cliff is said to be “gathering force as it falls to the beach below.
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