Batman (91kg) fakks straight down from a bridge onto a boat?
824337
Assuming that the boat is not moving under constant power, and neglecting the force of water resistence, the boat's new velocity would be 9.33 m/s.  \n\nWe know this because of conservation of momentum.  The momentum after the collision must be the same as the momentum before the collision.  Since momentum is equal to mass * velocity, the boat's momentum before the collision is:\n\n510kg * 11m/s = 5610kg*m/s. \n\nSince the momentum is the same after the collision, we just divide the total momentum by the new combined weight to get the new velocity:\n\nV = 5610kg*m/s / (510kg + 91kg) = 9.33m/s  \n\nThe speed with which Batman hit the boat does not factor into the equation, unless we're interested in the boat's angular velocity.  I'm assuming that you only want to know the boat's horizontal velocity over the water.  Since Batman had no horizontal momentum (he was falling straight down), his movement would not affect the horizontal motion of the boat.
174717
put him in a strait jacket
544074
About 30m (100 ft) high.
519181
Build a bridge and get over it!
293494
A big boat that carries oil.
528357
because of the gravitational pull on the water, it comes down, not straight
507550
Wow... a lot of complicated answers...simply put... the majority of your force (or pressure) will be on the arch sideways with the most force on it at the initial take off point. It will gradually decrease as it goes round and up as gravity will take hold and it looses it momentum due to the friction against the arch(not allowing it to go straight. Remember that a body in motion wants to stay in motion. If the arch is not tight, it will carry most of its (the projectile) energy to the top platform, so make sure it is prepared for it.
1048704
yes. the fact that he is still on the ground means that some force is holding him down which would be gravitational force. if there was no graviatational force then he would be 'floating' in the air as if in outer space.
603474
put the miniature in a boat (hehe)
672592
if it was toe to toe fight,Hulk. If its just Hulk vs Batman, Batman would just hang back have a batdrink and wait on hulk to calm down, use some batgas to put David to sleep and slap the batcuffs on
1022471
I just watched the show on Super Coasters and this guy was talking about using the BofA building in San Francisco as the launch, it would be a 9 second drop at 150mph, and with the first hill, you would have 11 seconds of free floating air-time.  The ride would continue to the Golden Gate Bridge (5 miles away) and then to the top of the tower for a 1000 foot drop reaching speeds of 220mph.  Now that’s a ride.
1014751
some guy and really far
1121148
Definitely Batman, coz' he is much more earthly, just like any of us without any superpowers. I like him for his crime fighting strategies and dark "angst ridden" lonely life.
1172211
No.  The Batman was an ordinary human; Superman had extraordinary super-human powers.  No contest.
1078409
Someone with the ability to make & pilot a boat. :P
51110
I just called Mr Freeze to see whats up... he said not to worry. He is going to take care of your worthless butts just as soon as he deals with Batman!!!
22139
Batman because he is actually possible. Probably the only hero that can actually happen