68. It is difficult to fix a nail on a freely suspended wooden frame. Which law supports this statement? A.Law of inertia B.Newton's second law C.Newton's third law D.Pascal's law
Option C Solution: Newton's third law supports this statement. When the wooden block is not resting against a support, the block and nails both move forward on being hit with a hammer. However, when the block is held firmly against a support, and the nail is hit, an equal reaction of the support drives the nail into the block.