1. The problem statement, all variables and given/known data A block is given a push up an inclined plane with an initial velocity. At what time will the speed of the block be equal to the initial velocity again? No varialbes are given. 2. Relevant equations v= v(initial) + at 3. The attempt at a solution The final velocity is equal to the initial velocity, but opposite in direction. So, Initial Velocity + Final Velocity = 0. But, I don't know how to find time, because we aren't given any variables to work with.