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...
Having actually tried to read all of this 'debate', I want to question
Dr. Marlow on one point. While I'm on the 'they ain't forces' side of
this discussion, the one thing I don't follow (and let me be presumptuous
enough to suggest many others have not followed) is the relegating of
Gravity to a 'fictitious' force.
... but I have trouble with the inertial or nearinertial > frame analysis where gravity produces an acceleration but no
force on me is zero.
What is the other force if its not gravity
Ifsomeone suddenly pulls the chair out from under me, I now accelerate >
with gravity as a force in these situations (or have I misunderstood the
argument).