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According to Newton's second law of motion, if we we have a rigid, unchanging mass and we observe it accelerating, what must be happening?

a. a force is being applied to the mass
b. a force was once applied but is now not being applied
c. no force was or is being applied to the mass
d. the mass MUST be changing

User Vascowhite
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2 Answers

2 votes

a is the answer im sure

User Romin Manogil
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3 votes
a. a force is being applied to the mass
User Xin Meng
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