Multiple choice

Newton's 2nd law can be written as?

  1. Force = rate of change of mass

  2. Force = rate of change of acceleration

  3. Force = rate of change of energy

  4. Force = rate of change of momentum

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D Correct answer
Explanation

Newton's 2nd law defines force as the rate of change of momentum (F = dp/dt). This is the most fundamental form of the law.