The pipe is stuck in lhe ground so that when it is pulled upward the frictional force
Chapter 9, Problem 9-17(choose chapter or problem)
The pipe is stuck in lhe ground so that when it is pulled upward the frictional force along its length varies linearly from zero al B to /mu (force/length) at C. Determine the initial force P required to pull the pipe out and the pipe's elongation just before it starts to slip. The pipe has a length L. cross-sectional area A, and the material from which it is made has a modulus of elasticity .
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