Hi, How do you differentiate the following equation with respect to x?
E = 1/2mv^2 + 1/2*2kx^2 + 1/2*3k(xb-xa)^2
ignore the b and a after the last set of x's - this is just to say the will take on different values.
Is this what you want to differentiate?
$\displaystyle E = 0.5mv^2 + kx^2 + 1.5k(x(b-a))^2$
Do you understand the power rule of derivatives? If not, you should review the rule. I posted it here: http://www.mathhelpforum.com/math-he...78-post56.html