Is this a trick question? more springs

[flyingpig]

Homework Statement

A block with mass m is held against a compressed spring and then the spring is allowed to uncompress giving the block a velocity. The block slides to the right and then up an incline. Find the maximum height that the block reaches if the incline is \theta degrees. All surfaces are frictionless, the spring constant is k and the initial spring compression is x_0.

The Attempt at a Solution

It says it gives the block a certain velocity, but that is after it releases right? So initally it still at rest. Also is the angle really necessary?

So really is it just

\frac{1}{2}kx_0 ^2 = mgh

 

[PeterO]

Homework Statement

A block with mass m is held against a compressed spring and then the spring is allowed to uncompress giving the block a velocity. The block slides to the right and then up an incline. Find the maximum height that the block reaches if the incline is \theta degrees. All surfaces are frictionless, the spring constant is k and the initial spring compression is x_0.

The Attempt at a Solution

It says it gives the block a certain velocity, but that is after it releases right? So initally it still at rest. Also is the angle really necessary?

So really is it just

\frac{1}{2}kx_0 ^2 = mgh

You are right about the velocity.
With regard to height, I would agree you don't need the angle if you are considering vertical height gain, which makes me wonder if they are expecting an answer like x metres up the slope, rather than a vertical height gain??