A vertical spring (ignore its mass), whose spring stiffness constant is 900 N/m, is attached to a table and is compressed down 0.110 m.(adsbygoogle = window.adsbygoogle || []).push({});

(a) What upward speed can it give to a 0.300 kg ball when released?

-----------m/s

(b) How high above its original position (spring compressed) will the ball fly?

------m

Now if im following my lecture notes correctly for part a)

I am using the equation is that V^2=KX^2

-------

mass of ball

so when we out it all out it should be v^2=900n/m(-.110m)^2

-----------------

.300 kg

-------------------------->v=6.02 m/s but that answer is wron apparently. I dont know where im going wrong.

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# Homework Help: Spring problem need help

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