Homework Help: physics

Posted by Skylar on Thursday, October 4, 2012 at 12:40pm.

You drive a car 2.0 km to the gas station, 4.0 km to the shopping mall to let your mother off, and 4.5 km back home. The trip takes 20.0 min. What is your average speed?

physics - Henry, Friday, October 5, 2012 at 4:30pm
r = d/t = (2+4+4.5)/(20/60)h = 31.5km/h.

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