Question

Jenny walks from her house (x = 5 m) to her friend’s house on the same block (x = 65 m). What was Jenny’s initial position? What was Jenny’s final position? What was Jenny’s displacement? If it took Jenny 20 seconds to walk to her friend’s house, what was her average velocity?

Answer 1

Jenny's initial position is 5 m, and her final position is 65 m.

To calculate Jenny's displacement, we need to find the difference between her final and initial positions. Using the formula for displacement, we have:
Displacement = 65 m - 5 m
Displacement = 60 m
Therefore, Jenny's displacement is 60 m.

To determine Jenny's average velocity, we use the formula for velocity (v = Ax / At), where Ax represents the displacement and At represents the time taken.
Given that it took Jenny 20 seconds to walk to her friend's house, we can calculate her average velocity as follows:
Average Velocity = Displacement / Time
Average Velocity = 60 m / 20 s
Average Velocity = 3 m/s