(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Problem: http://img147.imageshack.us/img147/8509/physjc9.gif [Broken]

Additional info: mass of the lander 7750 kg, 1.790967742 is the mag of acceleration due to gravity, this info was found in earlier parts of the problem

2. Relevant equations

I used these 2 equations and set them equal

[1/2(kx^2)] * 3 = 1/2mv^2

3. The attempt at a solution

[1/2(11566.7)1.2^2] * 3 = 1/2(7750)v^2

solve for v, v= 2.53919 m/s, which was wrong

is the equation wrong?

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# Homework Help: Finding a landing speed from spring constants

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