Question

SF-2 The force required to stretch Force (N) (elongate) a spring is shown in the graph to the right. a) Find the spring constant K for b) The work required to stretch the 40 35 30 25 this spring. spring an infinitesimal distance dx is given by: dWk-Fdx where F-Kx. Do the integral to find an expression for the work required to stretch the spring from elongation xi to elongation x2. c) Find the work in joules to stretch 15 the spring 5.00cm from its unloaded length. d) What is the average force required 10 to stretch the spring from x-0 to x-5.00cm? e) Find the work in joules to stretch the spring from x1-5.00cm to X2=10.00cm. 0 1 2 3 4 5678 9 10 (cm) Spring Elongation, x f) What is the average force required to stretch the spring from x-5.00 to x-10.00cm? Hint: The average force does the same work as the varying force over the same distance.

Answer 1