(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

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.

2. Relevant equations

Vavg = Total Distance / Total Time

Average Velocity = Final displacement / Total time taken

3. 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

=12.3 km/h.

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.

Thank you.

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# Homework Help: Simple average speed/average velocity problem

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