- #1
johsun123
- 16
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Text book definition is "In the absence of forces, ("body") at rest will stay at rest, and a body moving at a constant velocity in a straight line continues doing so indefinitely".
My thinking.
Moon is orbiting Earth in a circular path, and not in a straight line. Still that motion follows the first law
So shouldn't the definition be
"In the absence of forces, ("body") at rest will stay at rest, and a body in (any state of) motion continues doing so indefinitely".
Non-linear motion also can be subject to 1st law. So why is the bolded terms used in textbook?
I am missing something, Please help me get it.
My thinking.
Moon is orbiting Earth in a circular path, and not in a straight line. Still that motion follows the first law
So shouldn't the definition be
"In the absence of forces, ("body") at rest will stay at rest, and a body in (any state of) motion continues doing so indefinitely".
Non-linear motion also can be subject to 1st law. So why is the bolded terms used in textbook?
I am missing something, Please help me get it.
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