Homework Help: Physics

Posted by Mishaka on Wednesday, October 12, 2011 at 4:10pm.

Cheryl runs a race on a 400.0 m circular track. She starts running east of the starting line and then circles the track and falls, stopping 1.00 m west of the starting line. Her time is 80.0 s. What was her average velocity?
I believe that it would be -1.25 x 10^-2 m/s, is this right?

Physics - Steve, Wednesday, October 12, 2011 at 4:42pm
She started "east" of the starting line. How far east?

If 0m east, she ran 399m/80s = 4.9875m/s

don't know where you got the negative velocity, unless you're calculating her falling speed. :-)

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