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August 28, 2014

August 28, 2014

Posted by **Sarah** on Sunday, October 14, 2012 at 7:59pm.

- Physics -
**drwls**, Sunday, October 14, 2012 at 11:26pmDivide her net distance travelled by 400 seconds.

The answer will depend upon her direction when traveling at 90 m/s. this is not clearly stated.

- Physics -
**Elena**, Monday, October 15, 2012 at 12:44pmDisplacement = (-20)•100 +30•200+90•100= =13000 m.

Ave velocity = displacement/time taken =

= 13000/400 =32.5 m/s.

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