Explanation Introduction: There are two kinds of forces acting in a system which are internal forces and external forces. An open system is a system in which a net external force is acting. The system is termed as a closed system when there is no external force acting in it. When a bullet is fired into a hillside, the bullet gets buried into the earth and thus, its final momentum gets to zero. This happens because the hillside applies net external force on the bullet in the direction opposite to the direction of the bullet and reduces its speed to zero. Also, the earth is applying force on the hillside to prevent it from sliding. Conclusion: There is net external force acting in the system due to the force applied by the hillside on the bullet...

OER 2016 Edition

ISBN: 9781947172173

Author: OpenStax

Publisher: OpenStax College

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Chapter 8, Problem 15TP

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The correct option which is an example of an open system.

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The correct option which is an example of an open system.

Solution Summary: The author explains that an open system is one in which a net external force is acting. The collision between two cars is elastic due to which the force applied by the cars on each other is equal and opposite.

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