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The law of conservation of momentum is stated for closed and isolated system. What are the...

Physics
WAEC 2024

The law of conservation of momentum is stated for closed and isolated system. What are the two conditions for a system to be closed and isolated?

  • A. No external force acts on the system and there is no change in mass of the system.
  • B. No external force acts on the system and there is a gain in mass.
  • C. No external force acts on the system and there is a loss in mass.
  • D. An external force acts on the system and there is no change in mass.
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Correct Answer: Option A
Explanation

For the law of conservation of momentum to hold, the system must be closed (no mass enters or leaves) and isolated (no external forces acting on it).

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