Hey I have a problem with question 4 of this problem set http://www.physics.ubc.ca/~mattison/Courses/Phys170/p170-ps5.pdf Number 4. I have found Vmin to be 0.84m/s which i know it is correct, but i cannot solve Vmax? i thoguht you could maybe approach this question with 2 parametric equations? can anyone show me some hints toward this question? Greatly appreciated.