Posted by **Anonymous** on Tuesday, September 2, 2014 at 6:14pm.

Steve traveled the first 2 hours of his journey at 40km/h and the last 3 hours of his journey at 80km/h. What is his average speed of travel for the entire journey?

- gr 11 physics -
**Ms. Sue**, Tuesday, September 2, 2014 at 6:20pm
2 hours = 80 km

3 hours = 240 km

5 hours = 320 km

320 / 5 = ______ km/h

- gr 11 physics -
**Anonymous**, Tuesday, September 2, 2014 at 6:26pm
So then would i change 64km/h into meters/seconds

- gr 11 physics -
**Anonymous**, Tuesday, September 2, 2014 at 6:27pm
Why is 2 hours equal to 80km

- gr 11 physics -
**Ms. Sue**, Tuesday, September 2, 2014 at 6:35pm
2 hours * 40 km/h = 80 km

Does your problem ask you to change kh/h to m/s?

- gr 11 physics -
**Anonymous**, Tuesday, September 2, 2014 at 6:51pm
Yes it does

- gr 11 physics -
**Anonymous**, Tuesday, September 2, 2014 at 6:51pm
Oh sorry no it doesnt! Sorry

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