• zaxoanl
Help please. I don't know how to setup the equation to this question an ideal spring is suspended from the ceiling. a mass m=4kg is attached to the spring stretching it a distance of 20cm. a) find the spring constant k of the spring b) how much work must be done to stretch the spring an additional 25cm
  • Stacey Warren - Expert
Hey! We 've verified this expert answer for you, click below to unlock the details :)
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
  • schrodinger
I got my questions answered at in under 10 minutes. Go to now for free help!
  • anonymous
|dw:1436800114050:dw| the mass is in equilibrium, so the net force acting on it must be zero. the two forces applied on the mass are, weight (\(W=mg\)) and spring force \(F_s=k.\Delta x\), so we can write: \[\sum F = F_s-W=0\] and solve that to get the spring constant \(k\). I called the spring stretch \(\Delta x\) here.

Looking for something else?

Not the answer you are looking for? Search for more explanations.