Last month, Louisa performed an experiment to study how springs are stretched by weights. She recorded the data carefully and found that a straight line fit the data very closely. This agreed what Louisa had read in her textbook concerning Hooke's Law. This
week, Louisa tried to help Alina perform a similar experiment. This time, the graph of the data seemed to bend into a curve at the
upper end
All of these could explain the new results EXCEPT