In a chase scene, a movie stuntman runs horizontally off the flat roof of one building and lands on another roof 2.0 m lower. If the gap between the buildings is 5.0 m wide, how fast must he run to cross the gap?
how long does it take to fall 2.0m?
4.9t^2 = 2
now, since speed = distance / time, he needs to run at 5/t m/s