I haven't seen the show yet so take what I say with a grain of salt. But I would suspect the test would be a lot different with the weight of the engines and fuel (which could add up to 3000# to the test). Also I would suspect that the original collision occurred with the engines running and producing substantial power. That boat at 25 mph would be just up on plane, requiring much power to keep it moving. Obviously the collision was unintended and the operator, even if he was at the controls after hitting, would take a second or two to throttle down. I would think the force from the engines would be enough to cause more damage than just a coasting boat hitting the pier. Finally I think it would take substantially more force to move the bow of a boat travelling through the water off course than it would to move a boat travelling on a trailer off course. I don't think the test as described in these posts is valid. I think the Mythbusters are busted and need to do this one over again.
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