AHS Physics worksheet titled "Displacement and Velocity" featuring six problems with solutions, including calculations of displacement, average velocity, and explanations of physics concepts.

- The total displacement is calculated as the final position minus the initial position: 7 cm - 5 cm = 2 cm.
- Average velocity is displacement divided by time. Displacement is 1200 m - 150 m = 1050 m north. Time is 30.0 minutes. Velocity = 1050 m / 30.0 min = 35 m/min North.
- Velocity is a vector quantity and must include direction. The statement only provides a magnitude (5.2 m/s) without specifying direction, making it incomplete.
- Displacement equals average speed multiplied by time if moving in a straight line. Time is 0.53 hours, speed is 19 km/h. Displacement = 19 km/h * 0.53 h = 10.07 km. Rounded to two significant figures, this is 10 km. (Note: The provided answer of 9.5 km appears to be incorrect based on the given values).
- Average velocity is total displacement divided by total time. If she started and ended at the same location, her total displacement is zero, resulting in an average velocity of 0.0 m/s, even though she covered distance and was tired.
- An echo is heard when sound travels to a surface and back. The total distance the sound travels is 2 * 280.5 m = 561.0 m. Time = distance / speed = 561.0 m / 340 m/s = 1.65 seconds.