Calculate Minimum Vertical Velocity for Salmon Jumping 1.9m Waterfall

[inner08]

In its final trip upstream to its spawning territory, a salmon jumps to the top of a waterfall 1.9m high. What is the minimum vertical velocity needed by the salmon to reach the top of the waterfall?

There seems to be some piece of information missing.
I know that:
a = 9.8 m/s^2
dy = 1.9m

I'm thinking i'll probably be using the formula (Vf^2 = Vi^2 + 2ad) so that would mean I need to have the Vf or the Vi. Would either of these be equal to zero?!

Any help is appreciated!

Thanks,

 

[Hootenanny]

You do know the final velocity. How fast will the salmon be traveling vertically if it only just reaches the top of the waterfall?

 

[inner08]

I guess it would have to be 0 if it only just reaches it. Sorry, I'm not very good with word problems.

 

[Hootenanny]

I guess it would have to be 0 if it only just reaches it. Sorry, I'm not very good with word problems.

You're right.

No need to apologise, I like formulae better myself, it's much harder to missinterpret a formula!

 

[inner08]

Thanks for your help :).

 

[Hootenanny]

No problem