Question

1. bob walks 4 miles west and stops to rest. he then continues to walk another 3 miles west. what is his displacement? a) 12 miles west b) 7 miles west c) 1 mile west d) 7 miles east 14. what is this equation: a² + b² = c² a) standard vector form b) equation of a circle c) pythagorean theorem d) resultant vector 15. how do scalars and vectors differ? a) scalars have direction b) vectors have units c) scalars have units d) vectors have direction

Explanation:

Step1: Determine the total displacement in the west - east direction

Bob walks 4 miles west, then 3 miles west, and there is also a 12 - mile west and 1 - mile west movement in other parts of the problem setup (assuming these are related to the same displacement context). The total west - ward movement is \(4 + 3+12 + 1=20\) miles west, and 7 miles east. To find the net displacement, we subtract the east - ward movement from the west - ward movement.
\[20-7 = 13\] miles west.

Answer:

13 miles west