Final answer:
The statement about the safest way to make a turnabout as driving around the block is context-dependent, thus it can be true or false. In the context of physics, displacement is independent of the path taken and depends only on the initial and final positions.
Step-by-step explanation:
The safest way to make a turnabout and change direction is generally to drive around the block, which can be true in most cases because it minimizes the need to reverse or enter opposing lanes of traffic where hazards may be more prevalent. However, this statement could be false if specific circumstances make another method of turnabout safer, such as in areas with low visibility or high traffic where driving around the block could pose greater risks. Therefore, the safest method of turnabout is context-dependent.
In physics, understanding motion and displacement is important. For instance, if a person has to walk 2 km east and then 1 km north but takes a wrong turn and walks in the opposite direction for the second leg, the magnitude of his total displacement will differ from the intended path. Similarly, the displacement of two persons, one walking 2 blocks east and 5 blocks north and another walking 5 blocks north and then 2 blocks east will be the same, as displacement depends only on the initial and final positions, making option B. False.