3 ms·It's 10 mph which is pretty slow as speeds go.by rtkwe 3y agoIt's 10 mph which is pretty slow as speeds go.euroderf 3y agoSlow-but-irresistible force meets movable object.samplatt 3y agoAll objects are surprisingly movable when they encounter enough mass.jaxson60 3y agoTo your point, it is mass. Most people don't understand mass on water. At 1 knot the ship would do the exact same damage, topple the support and drop the bridge.euroderf 3y agoMotor control and rudder control in a momentumous frame of reference.