A small rock moves in water, and the force (fluid resistance) exerted on it by the water is given by the equation Fd = kv, where k is a constant. The terminal speed of the rock is measured and found to be 2.0m/s. The rock is projected upward at an initial speed of 6.0m/s. You can ignore the buoyancy force on the rock. Find the maximum height that the rock reaches.
I'm not quite sure if there is enough information given to actually solve this question. I can't seem to figure out how to start the question either :(