A man throws an object down an elevator shaft towards a downward moving elevator, which is 22m below the man when he throws the object with an initial speed of 6.50 m/s. how long after the object is thrown does it hit the target if the elevator is moving at a constant speed of 2.00 m/s?

distance of elevator from man:

22+2.0t

distance of object:
6.5t + 4.9t^2

So, when are they equal?