physics
posted by mercy .
a person walks due east for 10 meters and the due north for 10 meters. what is the total distance?
b). what is the average speed of a car that travels 30 meters in 10 seconds, then another 50 meters in 30 seconds.
Thank you for answering.

physics 
MathMate
Distance = total of distances
=10+10=20 m.
average speed
= total distance / total time
= (30+50)/(10+30) m/s
= ?
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