Homework Help: Physics

Posted by arcos15 on Thursday, September 13, 2012 at 12:04am.

A jogger runs eastward in a straight line with an average speed of 2.25 m/s for 4.98 min and then continues with an average speed of 1.58 m/s for 2.18 min. (Hint: time is in minutes and velocity is in meters/second)

(a) What is her total displacement (in m)?

_____________m

(b) What is her average velocity (in m/s) during this entire jog?

______________m/s

Physics - Scott, Thursday, September 13, 2012 at 11:39am
a) [(2.25 m/s * 4.98 min) + (1.58 m/s * 2.18 min)] * 60 s/min

b) (answer from a) / (4.98 min + 2.18 min) / (60 s/min)

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