According to Newton's second law of motion, if a rigid body of unchanging mass is observed accelerating, what must be happening?
A force is being applied to the mass.
A force was once applied but is now not being applied.
No force was or is being applied to the mass.
The mass must be changing.
Answers: 3
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According to Newton's second law of motion, if a rigid body of unchanging mass is observed accelerat...
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