Yossarian, blazing with rage and almost sobbing for revenge, hurled himself down into the crawlway and fought his way through against the dragging weight of gravity and inertia until he arrived at the main section and pulled himself up to the flight deck, to stand trembling behind McWatt in the pilot’s seat.
There are no more uses of "inertia" in the book.
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She had to overcome her inertia and get back to work.
The rocket’s inertia will take it out of the solar system.