Suppose a Chinook salmon needs to jump a waterfall that is 1.50 m high. If the fish starts from a distance 1.0

Question

Suppose a Chinook salmon needs to jump a waterfall that is 1.50 m high. If the fish starts from a distance 1.02 m from the base of the ledge over which the waterfall flows, find the x- and y-components of the initial velocity the salmon would need to just reach the ledge at the top of its trajectory.
v0x =______ m/s
v0y =______ m/s

Answer 1

Of course there is a minimum velocity and / or a minimum angle, below that the fish can not reach the ledge at the top of its trajectory.
However, I believe that you give too much freedom to the man who do the calculation. In fact, you may only specify the magnitude of the velocity and let the man to figure out the angle, or otherwise.