The Monkey and Zookeeper

There is an attractive monkey down at the zoo. The monkey spends most of its day execution from a limb of a tree. The zookeeper feeds the monkey through shooting bananas from banana cannon to the monkey within the tree. This particular monkey has a habit of dropping from the tree the moment in which the banana leaves the muzzle of the cannon. The zookeeper is faced along with the dilemma of while to goal the banana cannons within sequence to hit the monkey. If the monkey lets go of the tree the moment in which the banana is fired, after that where should she goal the banana cannon?