Posted by **Chris Adison** on Thursday, April 24, 2008 at 7:18pm.

I am solving a problem and someone tol me to use this formula

MgH = (1/2)*k*(H-2-10)^2 + Mg*2

where did this equation come from. Its not in my book. What concepts does it use?

Is it solved correctly?

MgH = (1/2)*k*(H-2-10)^2 + Mg*2

MgH = 0.5k(H-12)^2 + 2Mg

MgH = 05k(H^2 - 24H + 144) + 2Mg

MgH = 0.5kH^2 - 12kH + 72k + 2Mg

0.5kH^2 - 12kH - MgH + 72k + 2Mg = 0

0.5kH^2 - H(12k + Mg) + (72k + 2Mg) = 0

- physics please help me -
**Quidditch**, Thursday, April 24, 2008 at 8:38pm
The formula looks suspicious. The left side units are MgH and the rightmost term of the right side is Mg*2. Unless H represents some "unitless" parameter (not impossible, but unlikely), the units do not match.

## Answer this Question

## Related Questions

- physics repost - I am still trying to solve for H in this equation but I am ...
- physics repost - I am still trying to solve for H in this equation but I am ...
- Physics - How do you use this equation? mgh+1/2mvh=mgh+1/2mv^2+Fd
- Algebra 1 Concepts and Skills - "Write Equation of a line" USE: Y-Y1=M (x-y1); ...
- 8th grade math - Your uncle is three years older than your aunt. The product of ...
- math - The area of the wall you are going to paint is 50 feet2. If the width is ...
- math - someone please help me slove this problem. Use the qudratic formula to ...
- Algebra - I am still having trouble solving this problem. Use the quadratic ...
- math - I need help solving this equation please. Use the qudratic formula to ...
- Chemistry - I have a test on the general concepts of thermochemistry tomorrow. ...

More Related Questions