physics
posted by manuel .
a student walks 180m in 155s. the student stops for 35s and then walks 320m farther in 145s. What is the average speed of the entire walk?

physics 
bobpursley
he walked 180+320 m
time elapsed: 155+35+145 s
avg speed= distance/time elapsed 
physics 
florine Brissett
1.49 m/s
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