1) Suppose the zookeeper must shoot the banana from the banana cannon to the monkey who hangs from the limb of a tree. If the monkey lets go of the tree the moment that the banana is fired, then where should she aim the banana cannon?
The answer is to aim directly on the monkey, but I don't understand why!
I can only understand the special case when the cannon is at the same height as the monkey and is shot horizontally aiming at the monkey, they will drop by the same distance because horizontal and vertical components of a projectile motion are independent.
However, I don't understand the case above. Can somebody briefly explain the reason to me? Thanks a lot!