meg145
meg145
18-03-2018
Physics
contestada
I need help with 3 and 4
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anishakumari240
anishakumari240
18-03-2018
speed = distance /time
s1=68/2=34
s2=3/1=3
s3=25/1=25
average speed=s1+s2+s3=62/3=20.66
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