In agreement with preliminary question 3, Figure 1 demonstrates that the force required to keep the block sliding is significantly less than the force required to initiate sliding. Table 1 represents the mass of the block used throughout this experiment, which was found to be 0.467 kg. In Table 2, the maximum normal force and static friction force were found for the wooden block alone (Table 1) and when it had 500 g or 1000 g of additional weight. To calculate the normal force, the weight of the block (including added weights if applicable) was multiplied by gravity. As shown in Table 2, when no additional weight was added to the block, the normal force was 4.58 N and the maximum static friction was 1.775 N. When 500 g of weight was added to the block, the normal force was 9.48 N and the average maximum static friction was 3.688 N. Then, when 1000 g was added to the block, the normal force was 14.38 N and the average maximum static friction was 5.391 N. Figure 2 shows the results of the average values ​​of maximum static friction versus normal force.,