Homework Help: mechanics -physics

Posted by precious on Wednesday, January 2, 2013 at 9:52pm.

A car moved at 15m/s for 2minutes, afterwhich it moved at 18m/s for 45seconds,calculate the average velocity of the car?

mechanics -physics - Elena, Thursday, January 3, 2013 at 4:58am
averege v =total dostance/total time =
=(15•120 + 18•45)/165 =15.82 m/s

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