posted by jake on .
bill and bob are both on the roof of a building 176.4 m high. bill drops a penny straight down at the same instant, bob throws a dime vertically upwards. the dime is thrown over the age when it comes back down it misses the roof and follows the penny to the street below. how fast was the dime thrown if when the, penny hits the ground the dime is still at a height of 58.8m?