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View Full Version : Average Speed and Velocities


Victoria111294
Oct 8, 2008, 10:25 PM
Hi I'm stuck on a math problem and I'm not even sure how to figure this out.
It says


A women runs from her home and back,covering a total of 4 miles in 1/2 hours.what is her average speed and average velocity?
A- 4mi/hr,4mi/hr
B-8mi/hr,4mi/hr
C-4mi/hr,0mi/hr
D-8mi/hr,0mi/hr

I think its C? :confused:
I'm not sure though

ISneezeFunny
Oct 8, 2008, 10:41 PM
average speed is

total distance traveled/time

so, 4 miles over 0.5 hours

4/0.5 = 8

average velocity is

total displacement/time

if she went somewhere and came back to her original spot, her displacement is 0.

thus

0/0.5 = 0

bellsblood
Oct 29, 2008, 04:49 PM
Average speed is distance over time/ distance divided by time... :p oh yeah!