Arturo O. answered 01/19/20
Experienced Physics Teacher for Physics Tutoring
Speed is maximum at the lowest position, where all of the gravitational potential energy is converted to kinetic energy.
h = height in meters (given)
v = speed at lowest position = ?
g = acceleration of gravity in m/s2
gh = v2/2
v = √(2gh)
You know g and h. Plug in the numbers and get v in m/s.