renee145 renee145

01-06-2017
Physics

contestada

If the car went 30 km west in 25 min. and then 40 km south in 35 min., what would be its average speed?

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Moonnose Moonnose

01-06-2017

The total distance is 70km.
The total time is 60 minutes or 1 hour.
Speed=Distance÷Time
=70÷1
=70km/h

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01-06-2017

Average speed = (total-distance)/(total-time). That's 70 km/hr.

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