Is it inertial or not?
Classical Mechanics
Level
2
Which of the following is moving according to Newton's first law of motion ?
A skater who is experriencing zero force.
A skater who is moving straight forward and slowing down.
A skater who is moving in a circle ata steady speed
A skater who is moving toward a flagpole and speeding up.
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1 solution
A skater who is experiencing zero force is inertial and moves straight and steady. If that object is not traveling in a straight lie or if it is not covering equal distances in equal times , then it's not inertial. It's not obeying Newton's first law and it has external influences.