Question

Geoff starts feet from home and walks directly home at a constant rate of feet per second. Find the time (in seconds) Geoff takes to get home.

Answer 1

James' average speed is 0.00111 km/s or 1.11 m/s, and his average velocity is zero.

Step-by-step explanation:

Average speed is calculated by dividing the total distance traveled by the total time taken. In this case, James traveled a total of 2 km away from home and 2 km back home, which gives a total distance of 4 km. He took 30 minutes to walk out and 30 minutes to walk back, resulting in a total time of 60 minutes or 3600 seconds.

Therefore, to find James' average speed, we can use the formula:

Average speed = Total distance / Total time

Average speed = 4 km / 3600 s

Average speed = 0.00111 km/s or 1.11 m/s.

Average velocity takes into account both distance and direction. Since James walked out and back along the same path, his displacement (the change in position) is zero. Therefore, his average velocity is also zero.