The desperate contestants on a TV survival show are very hungry. The only food they can see is some fruit hanging on a branch high in a tree. Fortunately, they have a spring they can use to launch a rock. The spring constant is 1730N/m , and they can compress the spring a maximum of 16.1cm . They choose a rock that has a mass of 319g .
With what speed does the rock leave the spring?
What is the highest fruit that they could hope to dislodge using their spring and rock?