Hooke's law describes a certain light spring of unscratched length 35.0 centimeter. When one is attached to the top of a door frame and a7.50 kilogram object is hung from the other end, the length of the spring then becomes 41.5 meter.
(a) Compute its spring constant?
(b) The load and they are taken down. Two people pull in the opposite directions on the ends of the spring, each with a force of 190 Newton. Determine the length of the spring in this situation.