Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §8.6 Force, Work, and Energy, #2 · Calculus · Applications of integrals
A 12-inch spring is stretched to 15 inches by a force of…
A 12-inch spring is stretched to 15 inches by a force of 75 pounds.
(a) What is the spring constant in pounds per foot?
(b) Find the work done in stretching the spring.
(c) Find the work to stretch it 3 more inches.
Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §8.6 Force, Work, and Energy, #2
Stuck? A gentle nudge
No hints for this one.
Your working
Check your full solution
Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.
Your first check today doesn't need an account.
Your photos and PDFs are read once and not stored — only the transcription is kept.