Question

1. It takes 10 seconds for you to go to the cafeteria from the classroom and to

come back. Cafeteria is 20m away East to the classroom. What is your average
velocity?

Answer 1

4 m/s East.

Step-by-step explanation:

Velocity: This cam be defined as the rate of change of displacement. The unit of velocity is m/s.

From the question,

v = d/t...................... Equation 1

Where v = velocity, d = displacement, t = time.

Given: d = 20 m East, t = 5 seconds.

substitute into equation 1

v = 20/5

v = 4 m/s East.

Hence the average velocity = 4 m/s East.