A woman is standing on a bridge a height H = 4.9m above a river below. A raft is approaching the bridge at a constant velocity v = 5m/s. If the raft is initially a distance D = 10m from the bridge, how long must she wait before jumping in order to land on the raft below?. You may neglect air resistance. Hint: What distance does the raft travel in the time it takes the woman to fall from the bridge?