This is a multiple choice question:

You toss a (wrapped) sandwich to a friend leaning out of a window 10 m above you, throwing just hard enough for it to reach her. At the same instant, she drops a silver dollar to you.At what position do the dollar and the sandwich pass each other?

A.More than 5 m above you.
B.Less than 5 m above you.
C.5 m above you.

I don't understand how I have enough information to answer this question, wouldn't it depend on the starting velocity with which you threw the sandwich?

more than 5m above you

You are correct that the starting velocity of the sandwich would determine the position at which the dollar and sandwich pass each other. The question does not provide information about the starting velocity of the sandwich, so it is not possible to determine the position accurately. Therefore, the answer would be that there is not enough information provided to answer the question.

You're correct that the answer to this question depends on the starting velocity with which the sandwich is thrown. Unfortunately, the question does not provide enough information to determine the starting velocity or any other relevant details about the motion of the sandwich or the coin.

Without information about the speed, angle, or other factors that determine the trajectory of the thrown sandwich, it is not possible to accurately determine the position at which the sandwich and the coin pass each other. This lack of information makes it difficult to select an option from the given choices.

To accurately answer this question, you would need additional information specifying the starting velocity or angle of the sandwich's throw, or any other relevant details about the problem's setup.

think about it.

the dropped coin reaches you with exactly the same velocity as you threw the sandwich.