Which vehicle can exert the most force?

Question

Which of the following vehicles is most capable of doing the most damage if it crashed head on into an object. All of these vehicles are going 35 mph

Here are the vehicles and approximate weights:

Freight train (Anywhere from 150-300 tons on up)

Abrams Army Tank: About 60-70 tons

Bulldozer: Between 50-80 tons

Heavy Semi Truck (Cargo truck) at 45 tons

Answer 1

it's by mass, since the speeds are the same. so the freight train wins.

Answer 2

Easily the Freight train will cause the most damage, due to its mass.