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moved from general physics

A vertical spring with spring constant 300 N/m is compressed 0.06 m and a 0.25 kg ball placed on top. The spring is released and the ball flies vertically upward.

What is the ball's speed when it has gone 0.1 m high?

I don't know which relationship is required to find the speed, Can someone please help?

I calculated the maximum hight:

mgh = 1/2Dy^2

h = 0.22 m

Then i made use of the formula

E(final) = E(Initial)

0.25 * g * 0.22 = 0.25 * g * 0.1 + 1/2 * 0.25 * v^2

v = 1.53m/s

Is that correct?

What is the ball's speed when it has gone 0.1 m high?

I don't know which relationship is required to find the speed, Can someone please help?

I calculated the maximum hight:

mgh = 1/2Dy^2

h = 0.22 m

Then i made use of the formula

E(final) = E(Initial)

0.25 * g * 0.22 = 0.25 * g * 0.1 + 1/2 * 0.25 * v^2

v = 1.53m/s

Is that correct?