Assignement 3; Oscillation problem

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Assignement 3; Oscillation problem URGENT

Homework Statement



A spring is standing upright on a table with its bottom end fastened to the table. A block is dropped from a height 2.8cm above the top of the spring. The block sticks to the top end of the spring and then oscillates with an amplitude of 15 cm.

Homework Equations


1/2kx^2 + 1/2mv1^2+ mgh= 1/2KA^2 +1/2mvmax^2

POST ANSWER FIRST THAN EXPLANATION. DUE IN 2 HOURS urgent



The Attempt at a Solution


Tried to use conservation energy and got stuck. Dont need explanation, just an answer, its due at 7pm Est today. I tried to do it on my own but have failed miserably. If someone can do this really fast, post the answer FIRST and than post the explanation you would help me not lose 5% thanks a lot.
 
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