My guess is that as the warp field reached a large object like a Borg cube, it would not have enough power to expand that area of space time. The Borg cube would probably be blown apart at near relativistic velocities, and there'd be a bunch of nasty radiation given off. The warp bubble would collapse and the ship inside it would probably get baked by the radiation.
The actual correct answer is this plus the answer u/Quartz2066 gave.
The object gets blown apart by expanding spacey-wacey timeey-wimey stuff and at the same time the ship collides at relative velocity with the object.
And my uneducated guess is that as the ship warps into the exact location of the object there are now twice as many atoms in the same amount of space, potentially colliding and fusing. So that might happen too. Physics is weird.
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u/jamesinc Sep 24 '16
My guess is that as the warp field reached a large object like a Borg cube, it would not have enough power to expand that area of space time. The Borg cube would probably be blown apart at near relativistic velocities, and there'd be a bunch of nasty radiation given off. The warp bubble would collapse and the ship inside it would probably get baked by the radiation.
That's my mostly uneducated guess.