Physics for IGCSE & O level - Forces And Motion (Section 12 - No. 22)
Which of the following is a correct statement of Newton's second law?
For every action, there is an equal and opposite reaction.
An object at rest stays at rest, and an object in motion stays in motion with the same speed and direction unless acted upon by a force.
Force equals mass times acceleration.
All objects fall at the same rate regardless of mass.
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Newton's Second Law is F = ma.