I think you are correct, thank you. I was under the misconception that It was an average velocity, but, when I treat it as an instantaneous velocity the answer falls through easily and also makes more sense.
I can now also solve part b) with the new information.
Cheers :D
[SOLVED] Motion in one dimension
Homework Statement
To protect his food from hungry bears, a boy scout raises his food pack with a rope that is thrown over a tree limb at height h above his hands. He walks away from the vertical rope with constant velocity V^{1}_{boy}, holding the free end of...