A 4 kilogram block (block A) is released from rest at the top of a 20 meter long frictionless ramp that is 4 meter high. At the equal time, an identical block (block B) is released next to the ramp therefore that it drops straight down the same 4 meter. Determine the values for each of the following for the blocks just before they reach ground level.
(a) Gravitational potential energy
(b) Kinetic energy
(c) Speed
(d) Momentum