What is the mechanical advantage of a nail puller—similar to the one shown in Figure 9.23 —where you exert a force 45 cm from the pivot and the nail is 1.8 cm on the other side? What minimum force must you exert to apply a force of 1250 N to the nail?

Solution 19PE Step-by-step solution Step 1 of 5 Refer the figure 9.23 provided in the textbook. Step 2 of 5 Mechanical advantage (MA) of a nail puller is the ratio of force distance from pivot point and nail distance from pivot point. Here, is distance of input and distance of output forces applied from pivot point. Step 3 of 5 Substitute the values of . Hence, mechanical advantage of a nail puller is .