10.

[-/2.35 Points]DETAILSOSCOLPHYS2016 2.3.P.011.

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PRACTICE ANOTHER

A student drove to the university from her home and noted that the odometer on her car increased by12.0km. The trip took18.0min.

(a)

What was her average speed in km/h?

km/h

(b)

If the straight-line distance from her home to the university is10.3km in a direction 25.0south of east, what was her average velocity in km/h?

km/h

(c)

If she returned home by the same path 7 h 30 min after she left, what were her average speed and velocity in km/h for the entire trip?

average speed km/haverage velocity km/h