A crowbar like the one shown in the image can be used to transform an input force into a larger output force to move a load. Input force O Time Remaning 01:09.01 Question 9 of 38 Eag for Ren Crowbar Output force, 0 0 0 The longer the crowbar, the greater the output force will be for a given input force. However, if the matenial the crowbar is made of permits flexing, the output force for a longer crowbar may not be as great as expected. To study the effect of flexing, an investigation was performed with nine crowbars. all the crowbars consisted of the same materal and had the same thickness, but they varied in length from 0.5 meters (m) to 2.5 m, in 0.25 m increments. The same input force was applied to each crowbar, and a pressure plate measured the output force What was the independent variable in this investigation? input force elastic potential energy output force crowbar length