Q: So how can a man be able to break numerous blocks of
concrete with his hand?
A: Although a man should have done
some training before attempting to break the blocks of concrete, there’s also
physics involved. The man needs to exert a large amount of force onto the
blocks of concrete at a certain point. He generates a large amount of force
because of how fast his hand accelerates onto the block. Since the blocks are
close together, the momentum of fore from the first block breaking continues onto the
next blocks until all of them are broken. If the man misses his target,
inertia, an equal and opposite reaction will end up hurting or even breaking
his hand.
