Jeremy is training for a boxing match. He runs due north at an average speed of 16km/h for the first 8.0 km and returns to the training camp at an average speed of 10 km/h. Calculate his average speed and his velocity.
Vavg = Total Distance / Total Time
Average Velocity = Final displacement / Total time taken
The Attempt at a Solution
16 km/h for first 8.0 km = 0.5 hours
10 km/h for the trip back = 0.8 hours
Total time taken = 1.3 hours
Total distance = 16 km
Average speed = 16/1.3
The answer on my sheet is 12km/h. Am I doing something wrong or is it just rounded?
For average velocity, would it be 0? Since there is no displacement from the starting point?
I am just starting physics, and I just need guidance in the right direction.