Fill the spring force and energy

Exercise and reference answers

Missing parts

1. Answer

   -kx

   Choices

   1. -kx
   2. -kx2
   3. kx

2. Answer

   kx2/2

   Choices

   1. kx/2
   2. kx2/2
   3. kx2

Complete the statement

An ideal spring pulls back with Fs = {0}, so an extension x stores V(x) = {1}.

Instructions

Tap a chip for each blank to finish the spring law.

Explanation