A ball falls and bounces off the floor. Taking only the ball as the sy…

Question

A ball falls and bounces off the floor. Taking only the ball as the system fails because:

Accepted Answer

D. Gravity pulls it

1. A closed system needs no outside force.
2. Gravity pulls the ball down the whole time.
3. So the ball alone is not closed.
_Source: OpenStax University Physics Volume 1, Chapter 9, Linear Momentum and Collisions._

Answer

Air is warm

Answer

Mass is small

Answer

Floor is flat

A ball falls and bounces off the floor. Taking only the ball as the system fails because:

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