Please help soon! This question is about free fall

You are standing on the roof of the Gould-Simpson building and drop a quarter from the edge of the roof. (Ignore air resistance)

A. What is the ratio of the distance travelled by the coin in the first second compared to the first two seconds.

B. One second later you throw another quarter towards the ground. How fast should you throw the second quarter so that it catches up with the first quarter just before they both hit the ground. You may assume that the building is 40 m tall.