Quote:
Originally Posted by Sailor Steve
So if a diver came upon the submerged sub, he would be able to push it as if it wasn't there? Or if a fisherman snagged it he could just reel it in? That doesn't sound right to me. The thing still has the same mass, and any attempt to hook it is going to meet with that many tons of resistance.
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It's not the weight that would stop him, but the momentum and drag that
would make is difficult to move the sub fast. However, the diver would
theoretically be able to get the sub moving with virtually no effort, just very
slowly at first because of the momentum/inertia and then not reach a high
top speed because of the drag.
The weight of the sub would not be an issue as it has no weight in the
water at neutral buoyancy. Inertia and drag would be the big issues.