Why does this happen - when a football is kicked, its volume decreases?

1 Answer
NJ
Mar 5, 2018

Kicking the football depresses the skin of the football, which simultaneously decreases the volume of the football and increases the pressure of the air inside the football.

Explanation:

There is a gas law of the form: #PV=nRT#

R is a constant and n can be assumed constant. T is also probably constant since this occurring in a single environment. As the amount of air inside the football is probably unchanged. This leaves us with P and V that could vary. When a football is kicked, its skin will be depressed which decreases the volume of the football (V decreases). Simultaneously, the pressure of the air inside of the ball will increase (P increases).

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